Details

Autor(en) / Beteiligte

• Tang, Shao-Xian
• Sun, Yi-Hua
• Zhou, Xian-Rong
• Wang, Jian

Titel

Bowel mesentery(meso-appendix) microcystic/reticular schwannoma: Case report and literature review

Ist Teil von

• World journal of gastroenterology : WJG, 2014-02, Vol.20 (5), p.1371-1376

Ort / Verlag

United States: Baishideng Publishing Group Co., Limited

Erscheinungsjahr

2014

Quelle

MEDLINE

Beschreibungen/Notizen

• Microcystic/reticular schwannoma is a recently described variant of schwannoma with a predilection for the gastrointestinal tract. Due to overlapping features with other tumors, unawareness of this tumor type may lead to diagnostic and therapeutic pitfalls. We here report a case of microcystic/reticular schwannoma arising in the meso-appendix of a 43-year-old woman. The tumor was incidentally discovered by computed tomography scan for unrelated reasons. A laparoscopic operation was performed shortly after admission. Histological examination revealed a circumscribed tumor with a striking microcystic and cribriform architecture. Immunohistochemically, the tumor cells were diffusely positive for S100 protein, glial fibrillary acid protein and protein gene product 9.5, which were consistent with a peripheral nerve sheath tumor. The patient remains well with no signs of recurrence at a 10-mo follow-up. To our knowledge, this is the first case of microcystic/reticular schwannoma arising in the meso-appendix. Albeit very rare, microcystic/reticular schwannoma should be included in the differential diagnosis of appendiceal tumors.