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Abstract

Although being relatively uncommon, testicular primary germ cell tumours represent most of testicular tumours in young and middle-aged men. Metastatic disease accounts for up to ten percent of initial presentation.
A 31-year-old man presented with a two-week history worsening left lumbar pain radiating to the ipsilateral lower limb associated with claudication. The straight leg raise test was positive. Therapeutic failure prompted a computed tomography scan, revealing an incidental retroperitoneal mass suspicious of metastatic adenopathy.
The patient underwent retroperitoneal mass dissection, followed by right radical orchiectomy. Pathological specimen analysis revealed a burned-out testicular tumour.
Burned-out testicular tumours are a rare entity that may present as extragonadal metastatic germ cell tumours, often targeting the retroperitoneal region, with spontaneous histological regression of the primary testicular lesion. These tumours are usually a challenging diagnosis, emphasizing the importance of physical examination and scrotal ultrasound in the initial approach to these lesions.