18 F-FDG PET/CT as a prognostic factor in penile cancer

European Journal of Nuclear Medicine and Molecular Imaging
André SalazarMarcelo Mamede

Abstract

Penile cancer (PC) is a rare neoplasm with an aggressive behavior and variable prognosis. Lymph node (LN) involvement and pathological features of the primary lesion have been proven to be the most important survival factors. Positron emission tomography/computed tomography with fluorodeoxyglucose labelled with fluorine-18 (18F-FDG PET/CT) provides information on tumor staging and works as a prognostic factor, with promising results in other carcinomas. The aim of the present study is to evaluate PET/CT as a prognostic factor in PC. Fifty-five patients (mean age 56.6 y) diagnosed with penile squamous cell carcinoma were prospectively evaluated from 2012 to 2014. All subjects underwent 18F-FDG PET/CT before treatment and were regularly followed after surgery. Out of the 53 patients selected, 17 (32.1%) had localized disease (cT1-2) and 24 (45.3%) had palpable nodes (cN+). Partial penile amputation was performed in 38 patients (71.7%) and inguinal lymphadenectomy (LND) in 30 (56.6%). From the LND group, 16 (53.3%) presented with positive neoplastic cells (pN+). Patients with more aggressive disease had a significantly (p = 0.019) higher 18F-FDG tumor uptake (pSUVmax), while inguinal LN uptake (nSUVmax) was able to recognize metas...Continue Reading

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Citations

Dec 15, 2020·Mayo Clinic Proceedings·Jad ChahoudPhilippe E Spiess
Jul 11, 2021·Seminars in Nuclear Medicine·Anil Vasireddi, Nghi C Nguyen

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