Abstract
Retroperitoneal schwannomas are extremely rare tumors that arise from the Schwann cell of the peripheral nerves. Patients are typically asymptomatic, however, large tumors may lead to the development of abdominal pain or obstructive symptoms. Herein we describe a case of a 57 year-old male with a known peripancreatic cystic mass presenting with new onset abdominal pain and a CT demonstrating a 40 × 42 mm peripancreatic cystic structure previously 17 × 20 mm. Endoscopic ultrasound with fine needle aspiration was performed and cytological examination revealed a peripheral nerve sheath tumor. The patient underwent uneventful laparoscopic resection. Analysis of the surgical specimen revealed a spindle cell tumor with positive S100, negative CD117/CD34 and pancytokeratin consistent with a schwannoma
Highlights
Endoscopic ultrasound with fine needle aspiration was performed and cytological examination revealed a peripheral nerve sheath tumor
Retroperitoneal schwannoma (RS) is an extremely rare tumor arises from the Schwann cell of peripheral nerves
A 57 year-old African American male with end stage renal disease status post kidney transplant who is known to have a peripancreatic cystic structure that was being monitored clinically presented with new onset abdominal pain
Summary
Mohamed Sultan1*, Heather Pemberton, Walid Chalhoub, Abdulhameed Al-Sabban, Jay Zeck, Nadim Haddad and Jill Smith. Georgetown University School of Medicine, 3900 Reservoir Road, Washington, DC 20007, USA
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