Primary hydatid cyst of the right maxillary sinus: a case report.

Introduction: A hydatid cyst of the head and neck is a very rare condition, even in areas where Echinococcus infestation is endemic.

Case Report: We report a rare case of primary hydatid cyst of the right maxillary sinus in a 40-year-old man. The initial diagnosis of the presence of a cystic mass was the result of physical examination and computed tomography (CT) scan.

Supernumerary nostril together with esophageal atresia, imperforate anus and patent ductus arteriosus: a case report and review of the literature.

Supernumerary nostril is an extremely rare congenital entity which results from aberrant embryological development. The review of the literature reveals that only 30 cases of supernumerary nostril have been reported. We report a rare case of supernumerary nostril in association with esophageal atresia, imperforate anus, and patent ductus arteriosus.