title: [A case of carcinoid tumor arising from a horseshoe kidney].
abstract: Carcinoid tumor of the kidney is an extremely rare neoplasm. We report a case of primary carcinoid tumor arising from a horseshoe kidney in a 31-year-old man. An abdominal bulky mass was found at a local hospital and he was referred to our hospital for examination and treatment. From the results of computed tomography, magnetic resonance imaging and angiography, we suspected renal tumor arising from a horseshoe kidney and performed left partial nephrectomy with isthmectomy. Pathological findings of hematoxylin eosin staining revealed tumor cells proliferating in a cord-like and ribbon-like structure and the tumor cells stained strongly for chromogranin A, grimelius and neuron specific enolase. According to these findings, we diagnosed carcinoid tumor arising from a horseshoe kidney.
authors: Department of Urology, Kochi Medical School, Kochi University.
authors: Takashi
authors: T
authors: Anchi
authors: Kenji
authors: K
authors: Tamura
authors: Keiji
authors: K
authors: Inoue
authors: Shingo
authors: S
authors: Ashida
authors: Ichiro
authors: I
authors: Yamasaki
authors: Tamotsu
authors: T
authors: Takeuchi
authors: Taro
authors: T
authors: Shuin
mesh_terms: D000328:Adult; D002276:Carcinoid Tumor / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007668:Kidney / Q000002:abnormalities* / Q000473:pathology; D007680:Kidney Neoplasms / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D008297:Male; D009392:Nephrectomy