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Goblet cell carcinoid of the vermiform appendix.

Byline: Shah Md. Badruddoza and Rukhshana Akhter Jahan

ABSTRACT

A 38 years old female was admitted in a private hospital with history of abnormal uterine bleeding. Total abdominal hysterectomy (TAH) with unilateral salpingo-oophorectomy was performed. On request of the patient and their attendants, appendisectomy was done. Histopathology of the Vermiform appendix confrimed it was a goblet cell carcinoid.

KEY WORDS: Goblet cell carcinoid, Adenocarcinoid, Small-bowel neoplasms, Vermiform Appendix.

How to cite this article:

Badruddoza SMD, Jahan RA. Goblet cell carcinoid of the vermiform appendix. Pak J Med Sci 2011;27(4):920-921

INTRODUCTION

Goblet cell carcinoid, also variably known as adenocarcinoid, mucinous carcinoid, and crypt cell carcinoma, is a rare neoplasm with distinct histological and clinical features. It has histological features of carcinoid as well as adenocarcinoma and was initially described in a large series by Subbuswamy et al1 in 1974. It is believed to arise from crypt base stem cells. 2 Generally it stains positive for synaptophysin, neuron-specific enolase, cytokeratin, chromogranin, and bioamines, which are characteristic of carcinoid lineage.3,4 However, it does not secrete the active hormones, i.e., serotonin and its by products, typically seen in carcinoid, at least not to the extent to be detectable in systemic circulation or enough to produce carcinoid symptoms. Goblet cell carcinoid produces mucin, a feature consistent with adenocarcinoma cell line.3

CASE REPORT

A 38 years old female was admitted in a private hospital with history of abnormal uterine bleeding for two years. On examination she was apyrexic. Blood investigations revealed a high white cell count. Abdominal Ultrasonography was performed which showed bulky uterus. TAH with unilateral salpingooophorectomy was performed. On request of the patient and their attendants, appendisectomy was done.

Histopathology of the uterus with ovary revealed chronic cervicitis, leiomyoma and benign cystic lesion of ovary. Histopathology of Vermiform appendix showed a tumor at the tip of the appendix with clear margins of 6mm, composed of small glandular acini and individual cells with eosinophilic and focally granular cytoplasm occupying the submucosa (Figure-1 and 2). Overall the histological features were those of a goblet cell carcinoid tumor of the Vermiform appendix.

Post-operative recovery was uneventful and the patient was discharged on the tenth post-operative day. The patient was advised for follow up.

DISCUSSION

The diagnosis of goblet cell carcinoid of the appendix is essentially made on histological examination after surgery. This neoplasm has also been described as an adenocarcinoid, crypt cell carcinoma and goblet cell carcinoma. The preferred term, goblet cell carcinoma, was first coined in 1974 by

Subbuswamy et al.1 As the nomenclature implies, these tumors possess morphological features suggestive of both carcinoid and glandular differentiation. Reports from the medical literature on goblet cell carcinoid are sparse; however, the general consensus is that the clinical behaviour of goblet cell carcinoid is intermediate between carcinoid and adenocarcinoma.5,6 It is a more aggressive neoplasm compared with appendiceal carcinoid but is more indolent compared with adenocarcinoma.7 Most tumors are confined to the appendix at the time of diagnosis and the prognosis is good.8

They are characterized histologically by wide invasion of the mesoappendix, and clinically by delayed local recurrence and distant metastases. As the vast majority of these tumors are detected postoperatively, management centres on the need for reoperation and a right hemicolectomy is often curative.9 In patients with goblet cell carcinoids relative indications that may favour further surgery are:

(A) Angioinvasion as an isolated finding.

(B) Tumors with clear margins less than 2cm.

(C) Mucin-producing tumors.10

Goblet cell carcinoid is a rare malignancy that arises mostly from the Vermiform appendix but can also occur in other parts of the small bowel. Its prognosis is intermediate between classic carcinoid and adenocarcinoma of the Vermiform appendix. Goblet cell carcinoid has a propensity for peritoneal seeding that leads to peritoneal carcinomatosis. These tumours are usually incidentally detected and though it is rare, prior knowledge about the tumour will help preventing a diagnosis of a more aggressive neoplasm thereby hopefully improving the diagnosis, management and prognosis in patients with this rare entity.

REFERENCES

1.Subbuswamy SG, Gibbs NM, Ross CF, Morson BC. Goblet cell carcinoid of the appendix. Cancer 1974;34:338-44.

2. Warner TF, Seo IS. Goblet cell carcinoid of appendix: Ultrastructural features and histogenetic aspects. Cancer 1979;44:1700-6.

3. Hofler H, Kloppel G, Heitz PU. Combined production of mucus, amines and peptides by goblet-cell carcinoids of the appendix and ileum. Pathol Res Pract 1984;178:555-61.

4. Burke AP, Sobin LH, Federspiel BH, Shekitka KM. Appen-diceal carcinoids: Correlation of histology and immunohis-tochemistry. Mod Pathol 1989;2:630-7.

5. Anderson NH, Somerville JE, Johnston CF, Hayes DM, Buchanan KD, Sloan JM. Appendiceal goblet cell carcinoids: A clinicopathological and immunohistochemical study. Histopathology 1991;18:61-5.

6. Butler JA, Houshiar A, Lin F, Wilson SE. Goblet cell carci-noid of the appendix. Am J Surg 1994;168:685-7.

7. McCusker ME, Cote TR, Clegg LX, Sobin LH. Primary ma-lignant neoplasms of the appendix: A population-basedstudy from the surveillance, epidemiology and end-results program, 1973-1998. Cancer 2002;94:3307-12.

8. Jass JR. Tumors of the small and large intestines (including the anal region), in Christopher D. M. Fletcher, Diagnostic Histopathology of Tumors, Churchill Livingstone, Philadelphia, 3rd ed, 2007;1:391.

9. Kanthan R, Saxena A, Kanthan SC. Goblet cell carcinoids of the appendix: Immunopheno type and ultrastructural study. Arch Pathol Lab Med 2001;125:386-390.

10. Goede AC, Caplin ME, Winslet MC. Carcinoid tumor of the appendix. Br J Surg 2003;90:1317-1322.

1. Shah Md. Badruddoza, MBBS, FCPS, Professor,

2.Rukhshana Akhter Jahan, MBBS, MD, Lecturer,

Shah Md. Badruddoza, MBBS, FCPS (Histopathology), Professor, Department of Pathology, Rajshahi Medical College BANGLADESH.
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Author:Badruddoza, Shah Md.; Jahan, Rukhshana Akhter
Publication:Pakistan Journal of Medical Sciences
Article Type:Report
Geographic Code:9PAKI
Date:Sep 30, 2011
Words:941
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