Imaging findings of solitary fibrous tumor of the prostate: a case report

Sota Oguro; Akihiro Tanimoto; Masahiro Jinzaki; Hirotaka Akita; Hideki Yashiro; Shigeo Okuda; Sachio Kuribayashi; Kaori Kameyama; Makio Mukai

doi:10.1016/j.mri.2005.12.018

Imaging findings of solitary fibrous tumor of the prostate: a case report

Sota Oguro, Akihiro Tanimoto, Masahiro Jinzaki, Hirotaka Akita, Hideki Yashiro, Shigeo Okuda, Sachio Kuribayashi, Kaori Kameyama, Makio Mukai

MED - Medical Sciences

Keio University

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The imaging findings of a solitary fibrous tumor of the prostate are presented. A 35-year-old male presented with urinary retention and was found on transrectal ultrasonography to have a hypoechoic tumor of the prostate, measuring 5.5 cm in size. Magnetic resonance imaging on, the tumor showed low signal intensity on T1-weighted images and heterogeneous mixed signal intensity on T2-weighted images. Gadolinium-enhanced dynamic study showed gradual enhancement from the periphery to the center, and the enhancement is sustained. On immunohistochemistry, the spindle cells of the tumor showed positive staining for CD34 and bcl-2. Although the tumor was labeled as a low-grade malignancy on account of a low mitotic index (MIB-1 index) of about 5%, the patient developed local recurrence of the tumor with bladder wall invasion 12 months later.

Original language	English
Pages (from-to)	673-675
Number of pages	3
Journal	Magnetic Resonance Imaging
Volume	24
Issue number	5
DOIs	https://doi.org/10.1016/j.mri.2005.12.018
Publication status	Published - 2006 Jun

Keywords

Benign spindle cell tumor
CD34
Local recurrence
Low-grade malignancy
MIB-1 index

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10.1016/j.mri.2005.12.018

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@article{18124b1c47d3402abf9506f95da93046,

title = "Imaging findings of solitary fibrous tumor of the prostate: a case report",

abstract = "The imaging findings of a solitary fibrous tumor of the prostate are presented. A 35-year-old male presented with urinary retention and was found on transrectal ultrasonography to have a hypoechoic tumor of the prostate, measuring 5.5 cm in size. Magnetic resonance imaging on, the tumor showed low signal intensity on T1-weighted images and heterogeneous mixed signal intensity on T2-weighted images. Gadolinium-enhanced dynamic study showed gradual enhancement from the periphery to the center, and the enhancement is sustained. On immunohistochemistry, the spindle cells of the tumor showed positive staining for CD34 and bcl-2. Although the tumor was labeled as a low-grade malignancy on account of a low mitotic index (MIB-1 index) of about 5%, the patient developed local recurrence of the tumor with bladder wall invasion 12 months later.",

keywords = "Benign spindle cell tumor, CD34, Local recurrence, Low-grade malignancy, MIB-1 index",

author = "Sota Oguro and Akihiro Tanimoto and Masahiro Jinzaki and Hirotaka Akita and Hideki Yashiro and Shigeo Okuda and Sachio Kuribayashi and Kaori Kameyama and Makio Mukai",

year = "2006",

month = jun,

doi = "10.1016/j.mri.2005.12.018",

language = "English",

volume = "24",

pages = "673--675",

journal = "Magnetic Resonance Imaging",

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T1 - Imaging findings of solitary fibrous tumor of the prostate

T2 - a case report

AU - Oguro, Sota

AU - Tanimoto, Akihiro

AU - Jinzaki, Masahiro

AU - Akita, Hirotaka

AU - Yashiro, Hideki

AU - Okuda, Shigeo

AU - Kuribayashi, Sachio

AU - Kameyama, Kaori

AU - Mukai, Makio

PY - 2006/6

Y1 - 2006/6

N2 - The imaging findings of a solitary fibrous tumor of the prostate are presented. A 35-year-old male presented with urinary retention and was found on transrectal ultrasonography to have a hypoechoic tumor of the prostate, measuring 5.5 cm in size. Magnetic resonance imaging on, the tumor showed low signal intensity on T1-weighted images and heterogeneous mixed signal intensity on T2-weighted images. Gadolinium-enhanced dynamic study showed gradual enhancement from the periphery to the center, and the enhancement is sustained. On immunohistochemistry, the spindle cells of the tumor showed positive staining for CD34 and bcl-2. Although the tumor was labeled as a low-grade malignancy on account of a low mitotic index (MIB-1 index) of about 5%, the patient developed local recurrence of the tumor with bladder wall invasion 12 months later.

AB - The imaging findings of a solitary fibrous tumor of the prostate are presented. A 35-year-old male presented with urinary retention and was found on transrectal ultrasonography to have a hypoechoic tumor of the prostate, measuring 5.5 cm in size. Magnetic resonance imaging on, the tumor showed low signal intensity on T1-weighted images and heterogeneous mixed signal intensity on T2-weighted images. Gadolinium-enhanced dynamic study showed gradual enhancement from the periphery to the center, and the enhancement is sustained. On immunohistochemistry, the spindle cells of the tumor showed positive staining for CD34 and bcl-2. Although the tumor was labeled as a low-grade malignancy on account of a low mitotic index (MIB-1 index) of about 5%, the patient developed local recurrence of the tumor with bladder wall invasion 12 months later.

KW - Benign spindle cell tumor

KW - CD34

KW - Local recurrence

KW - Low-grade malignancy

KW - MIB-1 index

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DO - 10.1016/j.mri.2005.12.018

M3 - Article

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AN - SCOPUS:33646848555

SN - 0730-725X

VL - 24

SP - 673

EP - 675

JO - Magnetic Resonance Imaging

JF - Magnetic Resonance Imaging

IS - 5

ER -

Imaging findings of solitary fibrous tumor of the prostate: a case report

Abstract

Keywords

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