Characteristic findings of primary perirenal angiosarcoma on chemical shift subtraction magnetic resonance imaging (CSS-MRI): A case report

Tetsuo Yamasaki, MD; Shuji Nagata, MD; Shuichi Tanoue, MD; Mami Uegaki, MD; Kiyoaki Nishihara, MD; Jun Akiba, MD; Tosi Abe, MD

Radiology Case Reports (Jan 2024)

Characteristic findings of primary perirenal angiosarcoma on chemical shift subtraction magnetic resonance imaging (CSS-MRI): A case report

Tetsuo Yamasaki, MD,
Shuji Nagata, MD,
Shuichi Tanoue, MD,
Mami Uegaki, MD,
Kiyoaki Nishihara, MD,
Jun Akiba, MD,
Tosi Abe, MD

Affiliations

Tetsuo Yamasaki, MD: Department of Radiology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
Shuji Nagata, MD: Department of Radiology, Kurume University School of Medicine, Kurume, Fukuoka, Japan; Corresponding author.
Shuichi Tanoue, MD: Department of Radiology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
Mami Uegaki, MD: Department of Urology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
Kiyoaki Nishihara, MD: Department of Urology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
Jun Akiba, MD: Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
Tosi Abe, MD: Department of Radiology, Kurume University School of Medicine, Kurume, Fukuoka, Japan

Journal volume & issue: Vol. 19, no. 1
pp. 285 – 289

Abstract

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A 70-year-old man with supraglottic carcinoma underwent computed tomography (CT) for staging purposes. A tumor measuring approximately 7 × 10 cm was found incidentally in the left perirenal space. The tumor showed homogeneous high signal intensity on chemical shift subtraction magnetic resonance imaging (CSS-MRI) suggesting the presence of minimal amounts of fat. Five months later, the tumor had grown to approximately 10 × 12 cm with indistinct margins. CSS-MRI showed high signal intensity in the tumor periphery only. The tumor was resected and the pathological diagnosis was angiosarcoma. Angiosarcomas are malignant endothelial vascular neoplasms that are highly invasive to their surroundings. Here we report a case of primary perirenal angiosarcoma that was difficult to differentiate from a dedifferentiated liposarcoma. On CSS-MRI, high signal intensity within a tumor may be a characteristic feature of primary perirenal angiosarcoma.

Published in Radiology Case Reports

ISSN: 1930-0433 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Medicine: Medicine (General): Medical physics. Medical radiology. Nuclear medicine
Website: https://www.sciencedirect.com/journal/radiology-case-reports

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