[Mature retrovesical cystic teratoma in the adult. Case report]

A teratoma is a tumor with components resembling normal derivatives of the three germ layers [ectodermal, endodermal and mesodermal]. In most cases it is located in the testis and in the sacrococcygeal region. Diagnosis mainly depends on ultrasonography and MR imaging and will be confirmed histologically. Treatment consists of surgery, aiming at complete excision of the tumor. The prognosis varies according to the age of the patient and the location of the tumor. We herein present a new case of a retro-vesical cystic teratoma in a 24-year-old patient and describe the classification, treatment and prognostic factors related to this type of tumor