[Monostotic fibrous dysplasia of the upper maxilla. A case report]. / Displasia fibrosa monostótica de maxilar superior. Presentación de un caso clínico.

Fibrous dysplasia is a rare bone condition characterized by the replacement of healthy bone by fibrous tissue and different grades of bone metaplasia. It may affect one (monostotic) or more bones (polyostotic). We present the case of a patient with monostotic fibrous dysplasia of the upper maxilla and analyze the clinical characteristics, diagnostic and therapeutic aspects, and the bibliography of the disease.

[Adenoid cystic carcinoma. Presentation of three clinical cases]. / Carcinoma adenoide quístico. Presentación de tres casos clínicos.

Adenoid cystic carcinomas are malignant epithelial tumors that originate in body regions containing exocrine and eccrine glands. Their most common location is the salivary glands. These tumors have specific, highly individualized histopathological and clinical features. Three cases of adenoid cystic carcinoma in different sites, palate, sublingual gland, and nasal cavity, are reported. The literature is reviewed for information about the fundamental clinical, diagnostic, and therapeutic aspects of these tumors.