PEComa of soft tissues can mimic lymph node relapse in patients with history of testicular seminoma.
Perivascular Epithelioid Cell tumour (PEComa) is rare. We describe a 39-year-old man who underwent a left radical orchidectomy and adjuvant radiation therapy for a stage IA classical testicular seminoma. He was diagnosed with a mass lateral to the right common iliac artery that was considered suspicious for late lymph node relapse after 3 years of follow-up. Due to the unusual location of the mass and the equivocal findings of percutaneous biopsy, a laparoscopic pelvic lymphadenectomy was performed. Final pathology revealed PEComa of soft tissue. The patient is disease-free after 38 months of follow-up without adjuvant treatment. The presence of rare soft-tissue neoplasm should be considered in differential diagnosis of retroperitoneal masses during follow-up of germ cell tumours. Suspicious isolated recurrences of these neoplasms in unusual locations can require surgical excision to confirm diagnosis and avoid inappropriate treatment.
Division of Urology, Maggiore della Carità Hospital, University of Eastern Piedmont, Novara, Italy.
Gabriele
G
Guglielmetti
Division of Urology, Maggiore della Carità Hospital, University of Eastern Piedmont, Novara, Italy.
Paolo
P
De Angelis
Division of Urology, Maggiore della Carità Hospital, University of Eastern Piedmont, Novara, Italy.
Paolo
P
Mondino
Division of Urology, Maggiore della Carità Hospital, University of Eastern Piedmont, Novara, Italy.
Carlo
C
Terrone
Division of Urology, Maggiore della Carità Hospital, University of Eastern Piedmont, Novara, Italy.
Alessandro
A
Volpe