Primary carcinoid tumor in a horseshoe kidney

A case of primary carcinoid tumor arising within a horseshoe kidney in a 51‐year‐old woman is reported. The tumor was found incidentally by computed tomography (CT) during a check‐up for a suspected gall bladder polyp. Histologic, immunohistochemical and electron microscopic analyses of this tumor r...

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Bibliographic Details
Published in:International journal of urology 2000-05, Vol.7 (5), p.184-188
Main Authors: Isobe, Hideyuki, Takashima, Hideo, Higashi, Naotaka, Murakami, Yukito, Fujita, Kazuhiko, Hanazawa, Kisaburo, Fujime, Makoto, Matsumoto, Toshiji
Format: Article
Language:English
Subjects:
Carcinoid Tumor - diagnostic imaging
Carcinoid Tumor - pathology
Female
horseshoe kidney
Humans
Kidney - abnormalities
Kidney - diagnostic imaging
Kidney - pathology
kidney neoplasms
Kidney Neoplasms - diagnostic imaging
Kidney Neoplasms - pathology
Lymphatic Metastasis - pathology
Middle Aged
primary carcinoid
Tomography, X-Ray Computed
Urography
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Summary:A case of primary carcinoid tumor arising within a horseshoe kidney in a 51‐year‐old woman is reported. The tumor was found incidentally by computed tomography (CT) during a check‐up for a suspected gall bladder polyp. Histologic, immunohistochemical and electron microscopic analyses of this tumor revealed features typical of carcinoid tumor. Primary carcinoid tumor of the kidney is extremely rare and only 32 cases were previously reported, including five cases in horseshoe kidneys. None of these five cases in horseshoe kidneys demonstrated any evidence of local or distant metastases and all were alive at the time of reporting without evidence of disease after up to 3 years of follow up. The present case, even with accompanying lymph nodal metastasis, also has had no evidence of local recurrence or distant metastasis for 3 years post operation. Primary carcinoid tumor arising within horseshoe kidneys appear to be more benign than those within non‐horseshoe kidneys.
ISSN:0919-8172
1442-2042
DOI:10.1046/j.1442-2042.2000.00160.x