PMC2918837_01
CECT enterocalysis image showing a hyperdense vascular lesion in relation to the small bowel.
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F1
A 64-slice CT enteroclysis showed a lesion in relation to the mid small bowel loop, which was highly vascular (fig. 1).
a, b Note the tumor in a diverticulum at the antimesentric border of the jejunal loop.
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F2
This tumor had a size of 4 x 4 cm, was highly vascular and located in an antimesenteric diverticulum (fig. 2).
Resected specimen of the jejenum with tumor.
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F3
The patient underwent resection of the small bowel with 10-cm margins on either side, along with which a reasonable amount of mesentery was excised (fig. 3).
Mucosal surface of the cut specimen showing a dimple-like opening representing the mouth of the diverticulum.
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F4
The mucosal surface of resected jejunum inspected showed the mouth of the diverticulum (fig. 4).
a-c Histopathological images of the tumor morphology showing predominantly spindle-shaped cells layed in sheats (a); note the uniform eosinophylic cells arranged in short fasicles on high-power evaluation and encircled areas mitotic cells per high-power field (b and c).
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F5
Histopathological examination of the specimen was suggestive of GIST (fig. 5) in a diverticulum, which was confirmed by electron microscopy and immunohistochemistry.