PMC5914132_01
Abdominopelvic CT scan with IV and oral contrast. A 5 cm x 6 cm soft, hypodense mass along the anterior wall of the gastric antrum with subsequent pyloric stenosis and luminal obstruction with gastric dilatation in the body and fundus (the red arrow indicates the mass).
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Double contrast-enhanced abdominopelvic CT scan was performed and revealed a hypodense mass along the anterior wall of the gastric antrum with subsequent pyloric stenosis and luminal obstruction with gastric dilatation in the body and fundus (Figure 1).
Resected gastric mass after surgery.
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The open surgery for the obstruction relief was done, and subtotal gastrectomy with Roux-en-Y gastrojejunostomy was successfully performed (Figure 2).
Histopathological and immunohistochemical examinations. (a) Wavy spindled cells separated by woven fibrotic bundles which encompassed by the capsule (black arrow) are apparent. Also, the tumor capsule is surrounded by lymphoid follicles (white arrow). (b) High-power field view. (c) S100 protein is apparent at tumoral parts with diffuse staining as a characteristic feature for schwannoma.
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Pathological examinations were done, and characteristic histological findings for gastric schwannoma were detected (Figure 3).