PMC3919916_01
Computed tomography scan shows a large cystic-based tumor with a wall of uneven thickness. The tumor, with an unclear boundary between the stomach and spleen, (A) compressed the stomach to the right upper quadrant, leading to gastric lumen narrowing, (B) extended backward and compressed the pancreas and (C) almost occupied the entire abdominal cavity.
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No evidence of swelling of the regional lymph nodes or involvement of the major vessels was identified (Fig. 1).
Endoscopy shows local eminence of the gastric mucous membrane and reveals superficial veins, indicated by the black arrow.
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An endoscopy suggested compressed gastric wall, eminence of gastric mucous membrane and superficial veins (Fig. 2).
Resected specimen indicated as follows: a, section of the stomach wall; b, solid portion of the tumor; c, cystic portion of the tumor; and d, the spleen.
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The resected tumor weighed 122 g and exhibited a fish-flesh cut surface (Fig. 3).
(A) Pathological analysis demonstrated a gastrointestinal stromal tumor with a mixture of polygonal and spindle cells (hematoxylin and eosin; magnification, x200). (B) The cells appeared atypical (hematoxylin and eosin; magnification, x400).
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The cells appeared atypical and a certain amount of nuclear division was observed (Fig. 4).