[Spermatic cord lipoma].

In spite of being the most frequent tumour in this location, together with adenomatoid tumours, the spermatic cord lipoma is a very rare entity (30-35% each). The etiology is unknown but linked to a constitutional factors, obesity, an its presentation is more frequent in the fifth or sixth decade of life. It progresses always as an asymptomatic tumour, usually unilateral, showing a swift growth to masses larger than 10 cm. Diagnosis is reached by ultrasound and CAT when doubtful, and the histology is confirmed during scrotomy. Tumour resection is the choice treatment. In the case reported here there had been two earlier resections, so relapses and pseudo-relapses should be taken into account. Although rare, a few cases of lipoma degeneration to liposarcoma have been reported.