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Brachiomedian artery (arteria brachiomediana) revisited: a comprehensive review.


Arteries of the upper limb belong to quite variable systems throughout the human body. The branching patterns in axilla can be more inconstant than not, reported in 10% up to 55% of cases, and in the free part of the upper limb in approximately 23% of cases [1-5]. The aim of this article is to draw attention to a very rare variant of the main forearm arterial trunks which is clinically relevant due to its interesting and important anatomical relationships.


Arteria comitans nervi mediani (ACNM)--Median artery

The incidence of a variant artery accompanying the median nerve (NM), usually termed as the median artery Arteria comitans nervi mediani (ACNM--According to Terminologia Anatomica 1998) [6], is reported to very large extent from 0.6% to 53% (Table 1). This incidence inconsistency is based on the definition of the median artery. From the terminological point of view, it is any artery accompanying NM in the forearm and can extend into the hand via the carpal canal (canalis carpi). The older Latin anatomical nomenclatures (BNA, INA, and PNA) all used the term "arteria mediana" But from the anatomical point of view, two main types can be classified: ACNM antebrachii (ACNMa) (antebrachial type of median artery) and ACNM manus (ACNMm) (palmar type of median artery). Both types usually originate from the proximal segment of the ulnar artery (arteria ulnaris), from the common interosseous artery (arteria interossea communis) or from the anterior interosseous artery (arteria interossea anterior).

The first type runs only within the forearm to supply the anterior group of forearm muscles and distally fades out. Its incidence is reported in 8-12% of cases. As the ACNM does not reach the hand and supplies the forearm only, it can be denominated as the antebrachial type of the median artery (ACNMa).

The second type continues along the whole forearm and finally passes through the carpal canal and contributes to the blood supply of the palm. Its incidence is reported in approximately 4% of cases. In 35% of cases, the second type joins the trunk of the ulnar artery to form a complete superficial palmar arch (arcus palmaris superficialis) [7,8]. The second type corresponds more consistently with an embryonic structure termed the arteria mediana and that is why it is correct to use this synonym (AM) for the palmar type of the median artery (ACNMm).

As for the real incidence of both types, the data are rather unreliable because of the uncertainty of the terminology, which leads to the data being highly variable in their extent. Table 1 summarizes the most important studies of over 100 specimens (available to the authors) to see the incidence range. For other detailed data [9,10].

Bergman stated in his internet encyclopedia that the average incidence was 8% [7], while Rodriguez-Niedenfuhr et al., observed that the incidence of ACNMm was 18.7% in fetuses and 12% in adults, in his detailed and thorough studies on the European population. Counting every artery that runs with the NM regardless of its diameter, Rodriguez-Niedenfuhr et al., found the ACNMa in 53% of individuals. With such a high incidence, they considered the ACNMa to be "a normal feature rather than a variation" [8,11]. Results from our not-yet-published study show that the incidence of the ACNM in central European population is 7.4% (out of 176 limbs) with no proven relation to gender or side. Approximately half of the ACNM observed (3.4%) pass through the carpal tunnel as ACNMm, however, only 3 featured a diameter of 1 mm or larger within the canal.

The incidence varies with ethnicity and depends on age. South African newborns and infants from black communities are far more likely to have the ACNM. Henneberg and George reported the artery in 50% of forearms; over 38% of these were bilateral. In their previous work, they examined the adult population and found the incidence to be as high as 27.4% of cases, which is almost twice as high compared to the Middle European population [12-14].

The data concerning the difference in the incidence of ACNMa and ACNMm are inconsistent, the authors usually deal only with the "persistent median artery" and the amount of studied limbs is <50.

Arteria mediana superficialis (ACNMm superficialis)--Superficial median artery (Palmar type of superficial median artery)

The AM features a deep course, as does the NM. Even in the carpal canal, the AM is usually located underneath the nerve (dorsally to it). When the course of the variant artery in the midline of the forearm is superficial to the above-described one, it should be termed the superficial median artery (ACNM superficialis [ACNMS]). In that case, it can be either a branch of the radial artery or of the ulnar artery. If branching from a superficially located variant, it should belong to another terminological group. The relevant data are missing and it seems to be more of a theoretical variant. One case which fulfills the requirements of the definition is a variation mentioned by Monro in 1813. He observed a variant artery, branching from the cubital anastomosis (anastomosis cubitalis) between the superficial brachioradial artery (arteria brachioradialis superficialis) and the ulnar artery. It coursed superficially under the skin and terminated in the superficial palmar arch [15].

Arteria brachiomediana (ABM)--Brachiomedian artery

When the origin of AM is located proximally above the elbow level from the brachial artery (arteria brachialis [AB]) or from the axillary artery (arteria axillaris, AA), such a variant should be termed the brachiomedian artery (ABM), as proposed by Rodriguez-Niedenfuhr et al. They have summed up both the already-described and theoretically existing variants of the upper limb arterial trunks in a detailed study, in 2001, and mentioned (as the only authors) the incidence to be <0.26%, but without any detailed data [16].

ABM superficialis (ABMS)--Superficial brachiomedian artery

When the ABM courses superficially in either arm or forearm, it should be termed superficial brachiomedian artery (ABMS). It is a rare variant of the upper limb arterial trunks. As far as we know, the first indirect information comes from the book written by Green in 1830 (Figure 1). There is a depiction of the ABMS but in the text; there are no specific data to distinguish between the ABM and ABMS [17]. Already in 1816, Meckel mentioned two cases of a peculiar variation of the superficial brachioradial artery which bifurcated within the cubital fossa into a thicker lateral branch, obviously a radial artery, and a thinner medial branch, running subcutaneously and terminating in the superficial palmar arch. This variant should be termed the superficial brachioradiomedian artery (ABMS) [18]. Depictions from different authors and years are available as supplemental figures (Figure S1-S8).

Quain in 1844 reported on two cases of ABMS out of 478 upper limbs (0.42%), one seen in Plate 45 ("vas aberrans" or "median artery") and the other one in a very young child (no depiction) [19]. In 1843, Tiedemann depicted in his Table 46 and Figure 3, a case (No. 3) of the ABMS originating from the AB in the distal part of the arm [20]. Gruber contributed with a long-term and extensive exploration reporting on five cases out of 1,900 upper limbs (0.26%) in two subsequent articles in years 1852 and 1867, termed the "arteria mediana antebrachii superficialis." The first case was bilateral: On the right side; the variant artery branched from the AB, and on the left side from the brachioradiomedian artery (arteria brachioradiomediana, ABM). The second case concerned the brachioradiomedian artery, and the third one was the true ABMS originating in the middle part of the AB [21,22] (Figure 2). Calori in 1868 published two cases, one concerning an absent ulnar artery replaced with a superficially located artery, branching from the AB very proximally and passing superficially to the flexor retinaculum (retinaculum musculorum flexorum) into the hand; the other branching from the AA, with a thick branch in the axilla, running superficially in the arm and forearm and passing superficially to the flexor retinaculum into the hand--both cases cannot be classified as the ABMS [23]. Parisot observed one case without stating any further details in 1869 [24]. Giacomini reported in detail in 1884 on ABMS branching from the AA [25]. Testut, in 1895, included in his anatomical textbook two cases, one originating from the AA and the other from the BA (without stating any further details) [26]. Schwalbe mentioned, in 1898, a rare and peculiar variation of a double ACNM and a double ulnar artery. The usual ACNM as well as the ulnar artery was thin (rudimentary), but superficially there were two thick arteries branching from one short stem originating in the cubital fossa to form the AB (termed "arteria mediana superficialis and arteria ulnaris superficialis). Such a variant should be considered as a superficial brachioulnomedian artery (arteria brachioulnomediana superficialis, ABUMS--specimen No. 1961/case 22) and its branches as an accessory palmar type of median artery (ACNMm accessoria) and an accessory superficial ulnar artery (arteria ulnaris accessoria superficialis). He also observed a case of the superficial brachioulnomedian artery but without any deep counterpart (as before), however, there was a thick anastomosis with the radial artery in the middle of the forearm (specimen No. 741/ case 23) [27].

In the last century, Muller observed in a fetus (case No. 152) the AB superficialis superior" (ABMS) branching from the AA. The NM was accompanied by the ACNMa within the proximal half of the forearm (Figure 3). He also observed a more peculiar case (case no. 153) with ABMS branching from the AA which submerged in the middle of the forearm to join the ACNMm (as a usual branch from the ulnar artery). This case can also be termed as an accessory ABMS. Finally, he observed (case No. 151) an "AB superficialis superior" (ABUMS) which bifurcated in the forearm (close to the flexor retinaculum) into the ACNM and the ulnar artery [28]. According to Muller, this variant (ABMS) is identical to the "arteria plicae cubiti superficialis" first described and denominated by Gruber, but as seen in the original articles, these are two absolutely different variants [21,28].

A case reported by Hoskins in 1914 featured a deeper course in the arm (branching form the AA and running ventrolateral to the AB proper within the brachial fascia [fascia brachii]), but running a superficial course in the forearm. The artery was immediately subjacent to the median cubital vein (vena mediana cubiti) which would predispose the vessel to an inadvertent penetration during attempts at venipuncture of the median cubital vein. No relationship between the variant artery and NM is mentioned which allows us to conclude that the reported case (originally called "arteria brachii superficialis, antebrachii superficialis et mediana") by Hoskins should be termed as an "accessory superficial brachio-antebrachial artery" (arteria brachio-antebrachialis accessoria superficialis) to describe precisely its course [29].

In his detailed work concerning all arterial variations of the upper limb, Dubreuil-Chambardel noted his observation of a bilateral ABMS branching from the AA and featuring a cubital anastomosis with the proper AB within the cubital fossa [30]. A year later he reported a case with the ABMS branching from the AA which had a quite thick branch proximal to the cubital fossa which supplied the bellies of forearm muscles originating at the epicondyles [31]. In 1935, Schwyzer published a case report in which he described an arteria mediana ("arteria comes nervi median") branching from the superficial brachial artery. As the ABS then continued as the radial artery, this variant should be considered as a superficial brachioradiomedian artery (arteria brachioradiomediana superficialis) [32]. Maruyama in 1944 presented a case of the brachioulnomedian artery (arteria brachioulnomediana) and reported on two similar cases published in Japan at the beginning of 20th century [33]. In 1953, McCormack reported a unique variant, namely the superficial brachioradiomediointerosseous artery (arteria brachioradiomediointerossea superficialis), depicted in his Figure 3d, which divides superficially in the cubital fossa; unfortunately giving no detailed data [34]. In 1975, Mrazkova performed a study of embryonic material from surgical abortions and compared it to 75 adult specimens. She found two cases of the ABMS without stating further details [35].

Review of accessible recent literature revealed three cases: In 1999, Nakatani et al., reported on a unique case of the bilateral occurrence of ABMS (which they termed the AMS). On the right side it branched from the AA as the superficial brachioradiomedian artery and bifurcated at the level of the interepicondylar line (linea interepicondylaris) into the radial artery and ACNMS; on the left side the ABMS branched from the superficial brachial artery in the cubital fossa [36]. Darwish et al., in 2008 published a combined unique case of the ABR with the cubital anastomosis and of the ABMS branching from the ABR artery in the distal arm, which allows us to conclude that the reported case should be termed as the superficial brachioradiomedian artery to describe precisely its course and branching [37]. Last, Jelev and Georgiev described, in 2010, the ABMS branching from the initial part of the AB [38]. Our team has observed one case of the ABMS on the right side, branching from the distal segment of the AB, just above the cubital fossa [39]. The details of individual case-reports are summarized in Table 2.

As for larger studies, consisting of the detailed description of many specimens of the upper limb arterial trunks as a whole, no relevant data can be found, except the above mentioned study made by Quain [19]. Muller studied both fetuses and adults and observed only two cases of the SBMA in 1903. Incidence stated by him is 0% in adults (0/100) and 1% in fetuses (2/200) [28]. A summary of similar variations comes from the work of Poynter (1922) who classified the variations of the BA into four groups. The Group II.1 represents the case when there are two main arterial trunks in the arm ("doubled BA") and the variant superficial brachial artery continues as the ACNM or the common interosseous artery. No detailed data on the superficial or deep course of the ABM are stated but it includes several references (although most of them are not in context) [40]. Dubreil-Chambardel classified the origin of the ACNM into 10 types in 1926, the types VIII-X including the origin form the BA (2% out of all cases) but the real ABM can be related only to type IX [30]. Lieffring in 1924 only summarized from the above-stated case reports, and himself reported only the ACNM [41]. Adachi termed this variant as "arteria antebrachialis superficialis mediana' and summarized 8 cases (Nr. 6-14) from 410 dissected limbs of Japanese, all unilateral (Table 3). The last case (No. 14) cannot be considered a true ABMS because the variant artery, stemming from the AB in the middle of the arm, bifurcates superficially in the cubital fossa into the ACNM and the ulnar artery: That is why it should be considered as the brachioulnomedian artery and we have excluded it from the summary. The numbers reported by Adachi (1.7%) surpass the incidence reported in individual cases in the Caucasian race [42]. McCormack recorded in 1953 no such variant in his extensive study on 750 limbs [34]; neither did Keen in 1961 in his study of 284 limbs of different races [43].

Nakatani et al., in 1999 reported the bilateral case of SBMA, and stated its incidence to be 1% but considering the rather low number of specimens in his study (200) for such a rare variant, the number is not sufficiently reliable [36].

Finally, Rodriguez-Niedenfuhr et al., classified two theoretical variants concerning the ABM in 1999: The true ABM, branching from the brachial artery but coursing under flexor muscles of the forearm, which has never been reported according to our knowledge; and the ABMS, branching from the AB or even from the AA and coursing within the superficial fascia, which was not observed in adults and only once in a fetus by his team (reported incidence in fetuses 0.7% [1/150] and <0.2% in adults [0/480]) [16].

The data concerning the detailed studies of the upper limb arterial variations are summarized in Table 4.

Due to the long distance between the axillary fossa (fossa axillaris) and cubital fossa, the exact location of the origin of the ABMS can be classified into four groups, following the classification of similar variants (brachioradial and superficial brachioradial arteries) proposed by Rodriguez-Niedenfuhr et al., in 2001. The classification is based on the topography of the ABMS origin in the axillary fossa or within the arm (Table 5) [16]. Based on the meta-analysis it is usual to expect the ABMS origin either in the cubital fossa or from the adjacent part of the AB in the distal arm (in 35% of cases) or in the axillary fossa from the AA (in 35% of cases).


The presence of upper limb arterial trunks' variations is not a rare situation. Not surprisingly, the branching arrangement of the AA is more often irregular than what corresponds precisely to the textbook pattern. In the arm and forearm, the state is more constant but in each fifth individual, a variation of the main arterial trunk can be found. Each of them is a consequence of impaired development [28,44].

For a long time, there was a trusted theory postulated by Singer in 1933 who, briefly stated, described the variants as remnants of previous embryonic arterial trunks. He concluded that the median artery (arteria mediana) develops as the first artery from the axial artery (arteria axialis) and usually regresses after the 8th week of development [45]. But as Rodriguez-Niedenfuhr et al., presented in their review and study, Singer based his theory on the findings of one author, and did not take into account other embryological studies [16,46].

In 2001, Rodriguez-Niedenfuhr et al., published a new theory, emphasizing the fact that all principal arterial trunks of the upper limb are formed from a primitive capillary network encircling the developing bones. The principal advantage of this theory is that it offers a plausible, easy explanation of all the ever-reported variants of the upper limb arteries. Every arterial variation can be traced back to its embryologic origin [11,16]. Arey and Jurjus et al., suggested six explanations for the reported variations: The choice of unusual paths in the primitive vascular plexus; the persistence of vessels which are normally obliterated; the disappearance of vessels which are normally retained; incomplete development; the fusion and absorption of parts which are normally distinct; and a combination of factors leading to an atypical pattern [47,48].

Kopuz et al., studied the presence of the median artery in neonatal cadavers and proposed the theory that it regresses as late as during the perinatal period and early infancy [49]. Keen supposed that the median artery is a persistence of an embryonic artery [43] and Jaschtchinski called it an atavistic condition because it is usually found to contribute to the palmar arch (arcus palmaris) of certain lower animals [50].

To summarize the embryonic development of the upper limb vasculature [11], several important facts are:

First, the proximal (central) part of the right subclavian artery (pars proximalis arteriae subclaviae dextrae) arises from the right fourth pharyngeal arch artery (right fourth aortic arch, arteria arcus pharyngei quarti dextri) and its distal (peripheric) part is derived from the right seventh intersegmental artery (arteria intersegmentalis septima dextra). The left subclavian artery (arteria subclavia sinistra) has a different embryologic background; both its parts are formed from the left seventh intersegmental artery (arteria intersegmentalis septima sinistra) (day 28 after conception).

Second, the arterial system of the upper limb starts to develop as a dispersed capillary network at day 26 when a bud of the future upper limb appears; the capillary network is connected to the axial artery.

Third, the AA (day 33) and its branches on both sides of the human body are derived from the axial artery which is a distal (peripheral) continuation of the seventh intersegmental artery (arteria intersegmentalis septima). Conversely, the thoracodorsosubscapular trunk [truncas thoracodorsosubscapularis) is derived from the ninth intersegmental artery (arteria intersegmentalis nona). The nervous structures enter the limb to form the neural plate.

Fourth, the axial artery pierces the condensed nervous tissue within future axillary fossa on day 37.

Fifth, the AA continues as the AB, emanating the profunda brachii artery (arteriaprofunda brachii), on day 41.

Sixth, on day 44, all main arterial trunks of the forearm are formed (AB, ulnar, common interosseous and median arteries), except the radial artery whose proximal part is consolidated but the distal part is still in a form of a capillary plexus.

Seventh, on day 47, all nerve trunks as well as bones of the arm and forearm are chondrified: Only the distal part of the radial artery is still in a form of a capillary plexus.

Eighth, on day 52, all the principal elements of the upper limb have achieved their definitive shape (not size and dimensions) and location.

The reasons for the different interpretation of the ACNM/ ABMS can be attributed to the new classification of the upper limb arterial trunks' variations, proposed by Rodriguez-Niedenfuhr et al., in 2001 [16]. They have introduced a denomination using two roots ("brachio-" and "radial/ulnar/ interosseous/median") for the variant arteries with the more proximal origin (often termed as "high origin"). Due to this change of classification, all the old studies and case-reports shall be carefully read and the mentioned variations understood and denominated in terms of the new classification, in order to avoid erroneous results of their incidence.

ACNM/ABMS can replace the radial artery, the ulnar artery, or both arteries can be hypoplastic or stenotic in a part or in their whole course. This situation can lead to a failure of catheterization using either the radial or ulnar artery approach [51]. ACNM/ABMS can also serve as a collateral supply for the hand. When harvesting the vascular pedicle for a forearm flap based on the radial artery or the ulnar artery, or when harvesting the artery for a coronary bypass graft, it is necessary to consider this possible variant [52]. As a superficially located artery, it can be harmed in cut injuries to the arm and especially to the forearm, and gravely elevate the danger of heavy bleeding in the case of mechanical injury. As mentioned in the literature, an accidental injection into the ABMS can occur (instead of into the superficial vein) [53] and further consequences can happen, e.g. reflex constriction, inflammation and closure of the arterial caliber as well as potential ischemia of the hand in cases of impaired collateral circulation. Accidental ligation in cases of radial artery based flap dissection was also reported [38]. On the other hand, the ABMS can be used as an easily accessible vascular pedicle for the creation of a cutaneous forearm flap. ACNM/ABMS can be a cause of pronator teres syndrome or anterior interosseous nerve syndrome (when passing through the nerve or its branches), or carpal tunnel syndrome (in cases involving ACNMm or ABMSm). If the variant artery is of a large caliber, it may lead to compression of the NM within the carpal canal in patients who are prone to some pathological units (myxo-edema, rheumatoid arthritis or pregnancy provoking the carpal tunnel syndrome [54]). Clinical problems may appear as well as reported for superficial ulnar or superficial brachioulnar arteries [53,55-57].

The meta-analysis showed a slight difference between the Caucasian (0.23%) and Mongolian races (1.48%). But using Fisher's exact test and paired comparison, including Bonferroni's correction, there was only one significant comparison (p = 0.008) because the number of cases was very low. Based on the above stated data (28 cases of the proper ABMS) and the total meta-analyzed incidence (0.39%), it should be considered as one of the rarest superficially located arterial variants as compared to the superficial brachioradial artery (8.8-15.8%), the superficial brachial artery (3.6-9.6%), the superficial brachioulnar artery (0.7-7%) and the superficial brachioulnoradial artery (0.14-1.3%) [2,16].

The Latin nomenclature and terminology used in the article strictly follows that published in the Terminologia Anatomica (FCAT, 1998), as reviewed in our previous articles [58-60], and that suggested by Rodriguez-Niedenfuhr et al. [16].


Although the incidence of the ABMS is very low (0.39%), and our detailed survey did not reveal any published clinical case, it is not negligible, and therefore important that clinicians recognize the ABMS presence during both superficial and catheterization procedures on the upper limb.


The authors declare no conflict of interest.


The authors sincerely thank Vladimir Musil and Mirka Plecita for technical and bibliographic support. The study was supported by the Charles University, Project PRVOUK #33.


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David Kachlik (1)*, Marek Konarik (1), Jitka Riedlova (2), Vaclav Baca (3)

(1) Department of Anatomy, Second Faculty of Medicine, Charles University, Prague, Czech Republic, (2) Department of Anatomy, Third Faculty of Medicine, Charles University, Prague, Czech Republic, (3) Department of Health Care Studies, College of Polytechnics Jihlava, Jihlava, Czech Republic

* Corresponding author: David Kachlik, Department of Anatomy, Second Faculty of Medicine, Charles University, U Nemocnice 3, Praha 2, 128 00, Prague, Czech Republic, Phone: + (0)420224965780, E-mail:

Submitted: 14 October 2015 / Accepted: 25 October 2015

TABLE 1. Incidence of the ACNM based on studies performed on
more than 100 specimens (Natsis et al., 2009)

Author                         Year   Number   Incidence (%)

Luyendijk                      1986    1117         1.8
McCormack et al.               1953    750         4.43
Coleman and Anson              1961    650          9.9
Lindley and Kleinert           2003    526          3.4
Rodriguez-Baeza et al.         1995    320          3.1
Bilgin et al.                  2004    313          1.3
Keen                           1961    284          9.5
Rodriguez-Niedenfuhr et al.    1999    240         53/12
Balfred et al.                 1985    239           4
Chalmers                       1978    228          4.4
Ahn et al.                     2000    192          0.6
Srivastava and Pande           1990    134          1.5
George and Henneberg           1996    120         44.2
Kopuz et al.                   1995    110          4.5
Olave et al.                   1997    102          23
Libersa et al.                 1982    100          16
Gassner at al.                 2002    100          26
Adachi                         1928    200           8
Kachlik et al. (unpublished)   2015    176        4.0/3.4

If two numbers are stated, they show the incidence of ACNMa/ACNMm.
ACNM: Arteria comitans nervi mediani, ACNMa: Arteria comitans nervi
median antebrachii, ACNMm: Arteria comitans nervi median manus

TABLE 2. Details of individuals case-reports

Author                 Year   Sex   Side

Green                  1830   X     Right
Quain                  1844   X     Right
Quain                  1844   X     X
Tiedemann              1846   M     Left
Gruber                 1852   X     Right
Gruber                 1852   X     Left
Gruber                 1867   M     Left
Gruber                 1867   M     Right
Calori                 1868   X     Right
Calori                 1868   X     Right
Parisot                1869   X     X
Giacomini              1884   F     Left
Testut                 1895   X     X
Testut                 1895   X     X
Schwalbe               1898   X     Right
Schwalbe               1898   X     Right
Muller **              1903   M     Left
Muller **              1903   M     Right
Muller **              1903   M     Right
Hoskins                1914   M     Left
Schwyzer               1935   M     Right
Maruyama               1944   M     Right
McCormack et al.       1953   X     Right
Mrazkova               1975   X     X
Mrazkova               1975   X     X
Nakatani et al.        1999   F     Right
Nakatani et al.        1999   F     Left
Darwish et al.         2008   M     Right
Jelev and Georgiev     2010   F     Right
Kachlik et al.         2015   M     Right

Author                 Branch from   Level

Green                  AB            Middle part of arm
Quain                  AB            Fossa cubitalis
Quain                  AB            X
Tiedemann              AB            Distal part of arm
Gruber                 AB            Middle part of arm
Gruber                 ABRMS *       Middle part of arm
Gruber                 ABRMS *       Distal part of arm
Gruber                 AB            Middle part of arm
Calori                 AA *          Axilla
Calori                 AB *          Proximal part of arm
Parisot                AB            X
Giacomini              AA            Axilla
Testut                 AA            Axilla
Testut                 AB            X
Schwalbe               ABUMS *       Fossa cubitalis
Schwalbe               ABUMS *       Fossa cubitalis
Muller **              AA            Axilla
Muller **              AA *          Axilla
Muller **              ABUMS *       Axilla
Hoskins                ABS *         Middle part of arm
Schwyzer               ABRMS *       Fossa cubitalis
Maruyama               ABUMS *       Fossa cubitalis
McCormack et al.       ABRMIS *      Fossa cubitalis
Mrazkova               AB            X
Mrazkova               ABS           X
Nakatani et al.        ABRM *        Middle part of arm
Nakatani et al.        ABS           Fossa cubitalis
Darwish et al.         ABRMS *       Fossa cubitalis
Jelev and Georgiev     AB            Proximal part of arm
Kachlik et al.         AB            Distal part of arm

X: Not available in the original text, * See the main
text for details, **Fetus. AB: Arteria brachialis,
AA: Arteria axillaris

TABLE 3. Cases of ABMS reported by Adachi in Japanese
(Adachi, 1928)

Number        Sex   Side    Branch from   Level

1 (Case 6)    M     Right   ABS           20 mm above articulatio
2 (Case 7)    M     Right   AA            Behind musculus
                                          pectoralis minor
3 (Case 8)    M     Right   ABS           5 mm below articulatio
4 (Case 9)    M     Right   AB            Middle part of arm
5 (Case 10)   M     Right   ABS           13 mm above articulatio
6 (Case 11)   M     Right   ABS           At level of articulatio
7 (Case 12)   M     Right   ABS           5 mm above articulatio
8 (Case 13)   M     Left    AB*           Middle part of arm

* Arteria brachialis, ABMS: Arteria brachiomediana
superficiais, AA: Arteria axillaris

TABLE 4. Studies of upper limb arterial
variations concerning the ABMS.

Author                           Year      Specimens   ABMS

Quain                            1844         478       2
Gruber                        1852, 1867     1900       5
Muller--adults                   1903         100       0
Muller--fetuses                  1903         200       2
Adachi                           1928         410       7
McCormack                        1953         750       0
Rodriguez-Niedenfuhr et al.      1999         240       0
Nakatani et al.                  1999         200       2
Kachlik et al.                   2015         623       1

Author                        Incidence (%)   Race

Quain                             0.42        Caucasian
Gruber                            0.26        Caucasian
Muller--adults                      0         Caucasian
Muller--fetuses                     1         Caucasian
Adachi                             1.7        Mongolian
McCormack                           0         Caucasian
Rodriguez-Niedenfuhr et al.         0         Caucasian
Nakatani et al.                     1         Mongolian
Kachlik et al.                    0.16        Caucasian

TABLE 5. Classification of the origin of the arteria brachiomediana

Group   Location                                No.       %

1       Distal third of arteria brachialis      9 cases   35
        (including fossa cubitalis)
2       Middle third of arteria brachialis      6 cases   19
3       Proximal third of arteria brachialis    2 cases   6.5
4       Arteria axillaris                       9 cases   35
5       Not stated                              5 cases   16
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Author:Kachlik, David; Konarik, Marek; Riedlova, Jitka; Baca, Vaclav
Publication:Bosnian Journal of Basic Medical Sciences
Date:May 1, 2016
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