Anaplastic seminoma (AS) is an uncommon histological variant of classical seminoma of the testis and account for 5%-15% of cases. It is poorly described in the scientific literature. We present the case of a 50-years-old homeless man presenting with fever, marked left scrotal hardness and a fungating left scrotal lesion. He underwent left orchiopexy 40 years before. A computed tomography with contrast media showed a suspect testis cancer with scrotal involvment, extensive intralesional necrosis and multiple systemic metastases. A wide excision of the left hemiscrotum including the testis was performed in order to prevent severe local and systemic infectious complications. Histological examination revealed an AS. General conditions showed a rapid deterioration and the patient died on post operative day 10.