[Genital location of a clear-cell hidradenoma]. / Hidradenoma de células claras de localización genital.

Clear cell hidradenoma of the penile prepuce progressing to malignancy transformation is rare and arises from the adnexal glands of the skin. It may present in nodular or ulcerated forms, which make it almost impossible to distinguish from spinocellular carcinoma. Treatment is by wide surgical excision. Local recurrence and distant metastasis rare.

[Unicystic ameloblastoma as a clinicopathologic entity]. / Ameloblastoma uniquístico como entidad clinicopatológica.

Due to its clinic and histopathologic features, the unicystic ameloblastoma is a special kind of ameloblastoma, and it has a more favourable prognosis. The more interesting clinicopathologic aspects and the importance of a correct diagnosis are discussed in this paper, where we report two new mandibular cases of this tumor in young patients.