Abstract

ESPINOSA, Rául et al. Primary carcinoid tumor of the kidney: Case report. Arch. Esp. Urol. [online]. 2009, vol.62, n.2, pp.147-150. ISSN 0004-0614.

The primary carcinoid tumor of the kidney is a tumor of unusual presentation, 40 cases have been reported in the literature. We describe the presentation of a patient with a primary carcinoid tumor of the kidney. Objetives: To report a new case of renal carcinoid tumor, a rare tumor sometimes presenting without urinary tract symptoms, but rather associated with disorders of other organs that mask the clinical picture. Methods: To report the case of an 80 year-old patient, admitted to the Department of Gastroenterology with anaemia associated with diarrhea for one week. After blood, feces and image tests a solid mass was detected in the left renal parenquima; she was referred to our service and radical nephrectomy was performed. After 8 months of follow up her outcome is satisfactory. Results: Renal carcinoid is an infrequent entity, included among neuroendocrine tumors, described 100 years ago by Lubart, derived from Kuchitsky's cells, they produce polipeptidic hormones and biogenic amines; being more frequent in the gastrointestinal tract (62-67 %) and respiratory tract (22-27%). Generally, these tumors have a favorable outcome when they are diagnosed in time. Conclusions: Primary renal carcinoid is an infrequent entity among endocrine tumors. We must indicate this case's presentation was with anemia, diarrhea and positive occult blood in feces.

Keywords : Renal disease; Renal carcinoma; Carcinoid.

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