[Review of 32 gastro-intestinal stromal tumours with CD117 antigen]

AIM

The aim of this study is to review clinical data, histological and immunohistochemical findings and prognosis of stromal gastrointestinal tumors.

METHODS

A retrospective Study of 32 cases of stromal gastrointestinal tumors diagnosed in the Department of Pathology of Mongi Slim Hospital of Tunis from 1991 to 2004.

RESULTS

The average age of the patients was of 54.4 years, equal for sex. Tumors were essentially gastric (50%) and of the small intestine (37.5%). All the patients had surgical treatment. Gastro-intestinal Stromal Tumors or GIST represent the most frequent stromal tumor with 56.2% of cases.

CONCLUSION

After immunohistochimestry study, using CD117 antigen, this revision allows better management of GIST. Glivec is the standard treatment of advanced GIST.

[Isolated adenomatous polyposis of the appendix. Report of two cases]

BACKGROUND

Adenomas are rarely diagnosed in the appendix and may be isolated or may coexist with other neoplasms in the gastrointestinal tract. This emphasizes the need for postoperative colonoscopy when a polyp of the appendix is found. Moreover, the polyps are considered to be premalignant lesions.

AIM

Report two new cases of adenomas of the appendix.

CASES

We report the cases of 23-year-old and 22-year-old men, for whom appendicectomy performed for acute appendicitis. In both cases, histologic studies revealed adenomas in moderate dysplasia ; colonoscopy did not reveal any polyps.

[An uncommon trichoepithelioma: the giant solitary trichoepithelioma]

A case of giant solitary trichoepithelioma of the perianal region is described so to draw attention to this rare benign neoplasme and to discuss its clinical and histopathological chracteristics.