Abstract

Background:Testicular tumors in general can be classified as seminoma, embryonal carcinoma, teratocarcinoma, choriocarcinoma, and mixed tumors. Nevertheless, other histological types may also be obser­ved. In rare cases, primary or secondary neuroendocrine tumors derived from chromaffine cells can be observed in the testicle.Case Report: A 51-year-old patient was hospitalized on account of a two-month-old painless tumescence of the right testicle. Radical orchiectomy revealed a solid, inhomogeneous intratesticular tumor 3 cm in diameter. Pathohistological findings and immunohistochemical staining with different neuroendocrine markers revealed a testicular carcinoid classified as pT1. The excretion of 5-hydroxyindole­acetic acid (5-HIAA) was within the normal range. No further carcinoid tumor site was found.Conclusions: In case of a testicular carcinoid, exclusion of a primary carcinoid tumor site in other organs is mandatory..

Keywords: Chromogranins - chemistry, Carcinoid Tumor - ultrasonography, Chromogranin A, Chromogranins - chemistry, Testicular Neoplasms - ultrasonography, Testis - ultrasonography