[Dermoid cyst of the testis]. / Le kyste dermoïde du testicule.

The authors report a case of a 30-year-old patient presenting with a right testicular mass. The presumptive diagnosis was that of a malignant tumour. The definitive diagnosis, confirmed by histological examination of the orchidectomy specimen, was that of a dermoid cyst. The aetiopathogenic, diagnostic and therapeutic characteristics of this exceptional disease are reported.