American Journal of Medical Case Reports
ISSN (Print): 2374-2151 ISSN (Online): 2374-216X Website: Editor-in-chief: Samy, I. McFarlane
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American Journal of Medical Case Reports. 2019, 7(3), 33-35
DOI: 10.12691/ajmcr-7-3-1
Open AccessCase Report

A Case Report of a Gastric Schwannoma on the Lesser Curvature of the Stomach Presenting with Upper Gastrointestinal Bleeding

Matthew Hager1, and Joey Jarrard1

1Department of Surgery, Florida State University College of Medicine, Tallahassee, FL, USA

Pub. Date: March 04, 2019

Cite this paper:
Matthew Hager and Joey Jarrard. A Case Report of a Gastric Schwannoma on the Lesser Curvature of the Stomach Presenting with Upper Gastrointestinal Bleeding. American Journal of Medical Case Reports. 2019; 7(3):33-35. doi: 10.12691/ajmcr-7-3-1


Introduction: Gastric schwannomas are extremely rare mesenchymal tumors that represent only 0.2% of all gastric neoplasms. These tumors arise from the Auerbach or Meissner’s plexus and are most commonly found incidentally. Of those presenting with a gastric schwannoma only 12.8% of patients will present with upper gastrointestinal bleeding. Case Presentation: In this report, we present the case of a 51 year old female with signs and symptoms of upper gastrointestinal bleeding from a gastric schwannoma. The patient’s computed tomography revealed a 6.4 x 5.7 cm mass on the lesser curvature of the stomach near the pylorus. She subsequently underwent esophagogastroduodenoscopy with endoscopic ultrasound and fine needle aspiration revealing SMMS-1, Pankeratin, CD34, DOG-1, and CD117 negative immunohistochemical stains, which suggested a spindle cell neoplasm. The patient’s tumor was surgically resected two weeks later via laparoscopic distal gastrectomy with gastrojejunostomy. On immunohistochemistry, the tumor stained positive for S100, suggesting a gastric schwannoma. The patient’s postoperative course was complicated by possible early dumping syndrome which resolved in one week with dietary changes. She is tolerating regular food on follow-up and doing well. Discussion: With only a handful of reported cases, the need for inclusion of gastric schwannomas to the differential diagnosis of a bleeding gastric mass is essential. From these figures the likelihood of a patient with a gastric mass and upper gastrointestinal bleeding being caused by a gastric schwannoma is 0.026%. This points to the fact that this patient presentation is extremely rare but that gastric schwannomas do occur and need to be on the differential diagnosis of a patient with a gastric mass and signs of upper gastrointestinal bleeding.

gastric schwannoma S100 upper gastrointestinal bleeding gastric tumor gastric neoplasm

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