Schwannoma of the Appendix: A Systematic Literature Review

Current Researches in Surgery Medical Sciences, Prof. MD. Ph.D. Goran KRSTAČIĆ,MD. Ahmet YILMAZ, Editör, Livre De Lyon, Lyon, ss.141-145, 2019

Background

Schwannomas; benign neurogenic tumors originating from

schwann cells in the peripheral nerve sheath. They are usually seen in

the head, neck, spinal cord and extremities, but are rarely seen in the

gastrointestinal tract [1].

Gastrointestinal system schwannomas occur in the stomach (83%),

small intestine (12%) and finally in the frequency of decreases in the

colon and rectum. [2].

Schwannoma of colon and rectum occurres most frequently in the

cecum and right colon (30.5%) followed by the sigmoid (28.1%), the

rectum (21.1%), the left colon (8.3%), the transverse colon (5.3%),

and the appendix (1.1%). The tumor size ranged from 0.3 to 28 cm

with a mean of 3.78 cm (median 3 cm). [3].

Schwannomas of the appendix are rare among gastrointestinal

schwannomas. They are usually discovered incidentally as a

submucosal mass on routine colonoscopy and diagnosed on pathologic

examination of the operative specimen. Little information exists on

the diagnosis and management of this rare entity.

The aim of this study is to report a case of appendicular

schwannoma and the results of a systematic review of appendicular

schwannoma in the literature.