# Gastric schwannoma with atypical manifestations in an adult patient: case report and literature review

## TL;DR

A rare case of gastric schwannoma in an adult is reported, highlighting its diagnostic challenges and successful surgical treatment.

## Contribution

This case report adds to the limited literature on gastric schwannomas with atypical clinical manifestations.

## Key findings

- A 61-year-old female presented with gastric fullness and abdominal pain due to a gastric schwannoma.
- Immunohistochemistry confirmed the diagnosis after initial suspicion of a gastrointestinal stromal tumor.
- Surgical resection was effective in treating the gastric schwannoma.

## Abstract

Gastric schwannomas (GS) are rare tumours originating from Schwann cells that affect the gastrointestinal tract, posing a diagnostic challenge due to their nonspecific symptoms. We report the case of a 61-year-old female presented with gastric fullness and occasional episodes of abdominal pain. Computed tomography revealed a solid mass in the lesser curvature of the stomach, initially suspected to be a gastrointestinal stromal tumours. During surgery, an exophytic lesion was identified and confirmed histopathologically and immunohistochemically as a gastric schwannoma. GS should be considered in the differential diagnosis of gastric subepithelial tumours. Its diagnosis relies on immunohistochemistry, and surgical resection ensures effective treatment.