title: Primary testicular carcinoid tumor in a 19-year-old boy.
abstract: This report describes a primary carcinoid tumor of the testis arising in a 19-year-old boy. Symptoms suggestive of a carcinoid syndrome were not noted in this case. The pathological specimen did not contain teratomatous components. Histochemically, the argyrophil reaction was positive. The immunohistochemical finding of immunoreactive cells for 5-hydroxytryptamine (serotonin) was also positive. To our knowledge, this is the youngest case to be reported.
mesh_terms: D000328:Adult; D002276:Carcinoid Tumor / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D008297:Male; D012701:Serotonin / Q000378:metabolism; D013736:Testicular Neoplasms / Q000378:metabolism / Q000473:pathology*
chemical_list: D012701:Serotonin