The Japanese Journal of Urology
Online ISSN : 1884-7110
Print ISSN : 0021-5287
ISSN-L : 0021-5287
Case Reports
PRIMARY RETROPERITONEAL CARCINOID TUMOR ASSOCIATED WITH MULTIPLE ENDCRINE NEOPLASIA (MEN) TYPE 1: A CASE REPORT
Syuji Chiba, Kazuyuki Numakura, Kiyofumi Satoyoshi, Mitsuru Saito, Yohei Horikawa, Koichiro Takayama, Taketoshi Nara, Sohei Kanda, Yoshiko Miura, Shinya Maita, Hiroshi Tsuruta, Takashi Obara, Teruaki Kumazawa, Shintaro Narita, Norihiko Tsuchiya, Shigeru Satoh, Tomonori Habuchi
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Keywords: retroperitoneal tumor, carcinoid tumor, multiple endocrine neoplasia type 1
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2011 Volume 102 Issue 6 Pages 735-739

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Abstract
We report an extremely rare case of a 69-year-old man having a retroperitoneal carcinoid tumor associated with multiple endocrine neoplasia (MEN) type 1. The patient whose son and daughter were previously diagnosed with MEN type 1 was admitted to the Department of Endocrinology at our hospital for evaluation of this disorder. Computed tomography (CT) and ultrasonography revealed a parathyroid and retroperitoneal tumor (43mm×34mm). The patient did not consent to surgical management of the tumor; however three years later, a follow-up CT revealed tumor enlargement (55mm×50mm). We were unable to rule out a malignancy, and subsequently resected the tumor. A pathological diagnosis of retroperitoneal carcinoid was made. No local recurrence or metastasis have been observed for 21 months.
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© 2011 Japanese Urological Association
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