Signs of diaphragmatic rupture on computed tomography.The 'dependent viscera viscera /vis·ce·ra/ (vis´er-ah) plural of viscus. vis·cer·a pl.n. 1. The soft internal organs of the body, especially those contained within the abdominal and thoracic cavities. sign' The dependent viscera sign is seen with diaphragmatic rupture when there is loss of the posterior support of the diaphragm, allowing the viscera to drop against the posterior ribs and obliterating the posterior costophrenic recess. The dependent viscera sign is said to be present on the right side if the upper one-third of the liver abuts the posterior ribs (Fig. 1) and on the left side if the stomach or bowel abuts the posterior ribs or lies posterior to the spleen. (1) The 'collar sign' and the 'hump sign' This is a waist-like constriction constriction /con·stric·tion/ (kon-strik´shun) 1. a narrowing or compression of a part; a stricture.constric´tive 2. a diminution in range of thinking or feeling, associated with diminished spontaneity. of the viscera (stomach, bowel) that can be seen in diaphragmatic ruptures when there is herniation herniation /her·ni·a·tion/ (her?ne-a´shun) abnormal protrusion of an organ or other body structure through a defect or natural opening in a covering, membrane, muscle, or bone. of the viscera through the defect (Figs 2 and 3). It may be appreciated in all planes including axial computed tomography (CT). (2) The hump sign is a variant of the collar sign; it occurs as a result of a portion of liver herniating (Fig. 4) through the diaphragm, forming a hump-shaped mass. [FIGURE 1 OMITTED] [FIGURE 2-3 OMITTED] [FIGURE 4 OMITTED] Aphrodite Aphrodite (ăfrədī`tē), in Greek religion and mythology, goddess of fertility, love, and beauty. Homer designated her the child of Zeus and Dione. Gogakis, MB BCh Amarit Kaur Bajwa,MB BS, FCRad (Diag) (SA) Department of Diagnostic Radiology, Chris Hani Baragwanath Hospital Chris Hani Baragwanath Hospital is the largest hospital in the world[1], occupying 173 acres, with 3200 beds and 6760 staff members. The hospital is in Soweto, South Africa - just outside Johannesburg. and University of the Witwatersrand Due to the 1959 Extension of University Education Act the school was only allowed to register a small number of black students for most of the apartheid era, even though several notable black anti-apartheid leaders graduated from the university. , Johannesburg (1.) Colin P, Cantwell MD. The dependent viscera sign. Radiology 2006; 238(2): 752-753. (2.) Mirvis SE, Shanmuganagthan K. Imaging hemidiaphragmatic injury. Eur Radiol 2007; 17(6): 1411-1421. |
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