Abstract
Schwannomas are rare mesenchymal tumors of the gastrointestinal tract. Occurrence of these tumors is more common in the stomach than in the large intestine. These tumors usually present as polypoidal intraluminal lesions and based on their location can present with rectal bleeding, colonic obstruction, and abdominal pain or defecation disorders. We present a case of a thirty-five-year-old woman who presented with abdominal pain and melena. Patient was diagnosed with a nonobstructing superficially ulcerated mass in the cecum on colonoscopy and required right hemicolectomy. A very rare pathological diagnosis of cecal schwannoma was made postoperatively.
Highlights
Schwannomas originate from the Schwann cells, which form the neural sheath and encompass the nerves of the myenteric plexus
Review of the literature suggests that soft tissue tumors contribute about 1% of all gastrointestinal tumors [1]; and schwannomas account for about 2% to 8% of all gastrointestinal mesenchymal tumors [1, 2]
This is a case of a young woman who presented with melena and colonoscopy showed a mass in the cecum requiring surgery revealing a very rare schwannoma
Summary
Schwannomas originate from the Schwann cells, which form the neural sheath and encompass the nerves of the myenteric plexus. Schwannomas were first described by Verocay in 1910. The exact incidence of schwannomas is not known. Review of the literature suggests that soft tissue tumors contribute about 1% of all gastrointestinal tumors [1]; and schwannomas account for about 2% to 8% of all gastrointestinal mesenchymal tumors [1, 2]. This is a case of a young woman who presented with melena and colonoscopy showed a mass in the cecum requiring surgery revealing a very rare schwannoma
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