title: Carcinoidal tumor of the kidney.
abstract: Two cases of primary renal carcinoidal tumor are reported. One was discovered in a 32-year-old pregnant woman. The other tumor was retrospectively diagnosed 3 years after nephrectomy in a 65-year-old woman who was hospitalized with a metastatic lesion in her lumbar spine. Both tumors are compared with 5 other cases previously reported in the literature, and hypotheses about the cause of renal localization of this tumor are reviewed.
mesh_terms: D000328:Adult; D002276:Carcinoid Tumor / Q000209:etiology / Q000473:pathology* / Q000648:ultrastructure; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000209:etiology / Q000473:pathology* / Q000648:ultrastructure; D008854:Microscopy, Electron; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic / Q000473:pathology*