E-ISSN 1305-3612
Case Report
Primary penile lymphoma: the use of PET-CT for accurate staging and response monitoring
1 Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.  
Diagn Interv Radiol 2013; 19: 130-133
DOI: 10.4261/1305-3825.DIR.6253-12.1

Primary penile lymphoma is an extremely rare neoplasm. We present a case of 63-year-old man with painless diffuse pe- nile swelling and retention of urine. Biopsy from the penile swelling demonstrated CD20+ diffuse large B-cell lymphoma. Staging was performed using fluorine-18-fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET-CT) and revealed a FDG avid penile mass with enlarged and FDG avid multiple inguinal and aortocaval lymph nodes. A follow-up FDG PET-CT scan after eight cycles of combina- tion chemotherapy showed complete remission of the dis- ease. Thus, FDG PET-CT should be integrated in management protocols of rare primary penile lymphoma.

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