Renal Mucinous Tubular and Spindle Cell Carcinoma Shows a High Uptake on 18F-FDG PET/CT

Sho Furuya; Osamu Manabe; Toshikazu Nanbu; Noboru Yamashita; Yuuichirou Shinnno; Kiyoshi Kasai; Markus Kroenke; Nagara Tamaki

doi:10.2169/internalmedicine.9523-17

CASE REPORTS

Renal Mucinous Tubular and Spindle Cell Carcinoma Shows a High Uptake on ¹⁸F-FDG PET/CT

Sho Furuya, Osamu Manabe, Toshikazu Nanbu, Noboru Yamashita, Yuuichirou Shinnno, Kiyoshi Kasai, Markus Kroenke, Nagara Tamaki

Author information

Sho Furuya
Department of Radiology, Otaru General Hospital, Japan
Osamu Manabe
Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, Japan
Toshikazu Nanbu
Department of Radiology, Otaru General Hospital, Japan
Noboru Yamashita
Department of Urology, Otaru General Hospital, Japan
Yuuichirou Shinnno
Department of Urology, Otaru General Hospital, Japan
Kiyoshi Kasai
Department of Diagnostic Pathology, Otaru General Hospital, Japan
Markus Kroenke
Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, Japan
Department of Nuclear Medicine, Rechts Der Isar Hospital, Technical University of Munich, Germany
Nagara Tamaki
Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, Japan

Keywords: mucinous tubular and spindle cell carcinoma, renal cell carcinoma, FDG PET/CT

JOURNAL OPEN ACCESS

2018 Volume 57 Issue 8 Pages 1131-1134

DOI https://doi.org/10.2169/internalmedicine.9523-17

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Abstract

We herein report a rare case of mucinous tubular and spindle cell carcinoma (MTSCC) in an 80-year-old woman. A well circumscribed tumor located on the right kidney was discovered incidentally as a result of screening non-contrast CT. Fluorodeoxyglucose positron emission tomography (FDG PET)/CT showed the increased tracer accumulation in the tumor. The histological diagnosis was MTSCC, which is a rare and only recently established subtype of the malignant renal cell carcinoma (RCC). The present case suggests the clinical benefit of a high uptake of FDG combined with enhanced contrast CT in the differentiation of MTSCCs and other RCCs.

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