Sinonasal myxoma in an infant.

Myxomas of the maxillofacial region are neoplastic entities of mesenchymal origin most often associated with odontogenic origin; sinonasal myxoma is rare, located in the nasolabial region and originating from the sinonasal tract. The aim of the current study was to report a well-documented case of sinonasal myxoma in a 12-month-old boy, initially presenting with obliteration of his left nasolacrimal duct. A soft-tissue mass of the nasobuccal groove, firmly attached to the underlying bone, was revealed.

Peripheral osteoma of the maxillary alveolar process.

Osteoma is a benign, slow-growing tumor characterized by proliferation of compact or cancellous bone. Solitary osteomas are classified as peripheral, central, or extraskeletal. Peripheral osteomas of the oral cavity are unusual and the maxilla is rarely affected.