Duodenal stromal tumor with neural differentiation.
A 49-year-old woman was admitted to our hospital for detailed evaluation of an abdominal mass. Ultrasonography and computed tomography revealed two tumors, one a submucosal lesion of the duodenal second portion and the other a left adrenal tumor. Angiography showed that the tumors were hypervascular. Both tumors were removed surgically and examined histologically using hematoxylin-eosin staining. The duodenal tumor (10 x 6 x 5 cm) was initially diagnosed as a schwannoma, but immunohistochemical studies showed that it was S-100 protein negative and neuron-specific enolase positive. Therefore, this tumor was identified as a stromal tumor with neural differentiation. The left adrenal tumor was a nonfunctioning adenoma.
First Department of Internal Medicine, Nagoya City University Medical School, Japan.
A
A
Tanaka
M
M
Hoshino
T
T
Hayakawa
Y
Y
Kamiya
T
T
Ohiwa
A
A
Hirano
T
T
Kumai
M
M
Miyaji
T
T
Takeuchi
T
T
Eimoto
D000236:Adenoma / Q000473:pathology; D000310:Adrenal Gland Neoplasms / Q000473:pathology; D002454:Cell Differentiation; D004379:Duodenal Neoplasms / Q000175:diagnosis / Q000378:metabolism / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology; D009380:Neoplasms, Nerve Tissue / Q000175:diagnosis / Q000378:metabolism / Q000473:pathology*; D010751:Phosphopyruvate Hydratase / Q000378:metabolism; D009418:S100 Proteins / Q000378:metabolism
D009418:S100 Proteins; D010751:Phosphopyruvate Hydratase