Fat Necrosis Mimicking Local Recurrence With Fluorodeoxyglucose Positron Emission Tomography (FDG-PET) Positivity After Partial Nephrectomy for Renal Cell Carcinoma

We report a case of fat necrosis with positive results on fluorodeoxyglucose positron emission tomography (FDG-PET)-CT imaging after partial nephrectomy. A 77-year-old man underwent a partial nephrectomy for a right renal mass. The histopathological results showed clear cell renal cell carcinoma, G1...

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Bibliographic Details
Published in:Curēus (Palo Alto, CA) CA), 2023-06, Vol.15 (6), p.e40327
Main Authors: Tanaka, Toshimitsu, Yoshida, Takahiro, Maegawa, Yoko, Nakagawa, Masahiro, Kishikawa, Hidefumi
Format: Article
Language:English
Subjects:
Abdomen
Adipocytes
Biopsy
Body fat
Case reports
Kidney cancer
Medical imaging
Necrosis
Oncology
Radiology
Surgery
Tomography
Urology
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Summary:We report a case of fat necrosis with positive results on fluorodeoxyglucose positron emission tomography (FDG-PET)-CT imaging after partial nephrectomy. A 77-year-old man underwent a partial nephrectomy for a right renal mass. The histopathological results showed clear cell renal cell carcinoma, G1>G2, pT1a. Four and a half years after surgery, a nodule appeared in the retroperitoneal space on CT. FDG-PET CT showed increased uptake in the nodule, indicating local recurrence of carcinoma. A right nephrectomy was performed. The histopathological diagnosis was fat necrosis.
ISSN:2168-8184
2168-8184
DOI:10.7759/cureus.40327