A case of retroperitoneal ancient schwannoma in the pelvis

We treated a case of retroperitoneal ancient schwannoma in the pelvis detected incidentally at a health examination without clinical manifestation in a 59-year-old Japanese man found to have hypertension. Computed tomography showed a heterogeneously enhanced 8 x 7 cm solid mass in the pelvic retrope...

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Published inHinyokika kiyo. Acta urologica Japonica Vol. 47; no. 7; pp. 473 - 476
Main Authors Nakano, M, Miwa, K, Kanimoto, Y
Format Journal Article
LanguageJapanese
Published Japan 01.07.2001
Subjects
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Neurilemmoma - diagnosis
Neurilemmoma - pathology
Retroperitoneal Neoplasms - diagnosis
Retroperitoneal Neoplasms - pathology
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Summary:We treated a case of retroperitoneal ancient schwannoma in the pelvis detected incidentally at a health examination without clinical manifestation in a 59-year-old Japanese man found to have hypertension. Computed tomography showed a heterogeneously enhanced 8 x 7 cm solid mass in the pelvic retroperitoneal space. Magnetic resonance imaging revealed an encapsulated tumor, showing a low intensity on the T1-weighted image, heterogeneously high intensity on the T2-weighted image and the tumor homogeneously enhanced with Gd-DTPA. It was suspected to be a mesenchymal tumor. The tumor was resected en bloc. The histologic examination of the extirpated tumor was an ancient schwannoma. A total of 11 retroperitoneal ancient schwannoma cases were reviewed.
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ISSN:0018-1994