Sinonasal Myxoma: A Distinct Lesion of Infants

Abstract

An 11 month old Caucasian male presented with swelling of the right side of the nose and buccal vestibule of unknown duration. Radiographic images revealed a well-circumscribed, hypodense soft tissue mass with a peripheral hyperdense circumference involving the anterior aspect of the right maxilla. The lesion extended from the inferior aspect of the orbital rim superiorly to the maxillary bone inferiorly without invading any nearby structures. The lesion was completely resected via combined extraoral and intraoral approach. The clinical, radiographic, histologic and immunohistochemical features of a sinonasal myxoma in an infant are discussed.

Myxoma of Nasal Ala in an Adult Patient

“…Myxoma of the head and neck is a very rare benign neoplasm. [1][2][3][4][5][6][7][8] Myxoma is most frequently found in the atria, but can also be found in bones, skeletal muscle, skin, and soft tissue. 4,5) Myxoma of the head and neck occurs in patients between the ages of 1 and 73 years, but most often occurs in the second to fourth decades.…”

Sinonasal Myxoma With Intraorbital Expansion: A Rare Case

“…They generally require excision, as they cause painless swelling followed by nasal congestion, obstruction, and epistaxis. 1 Sinonasal myxomas are often diagnoses of exclusion, with the broader differential for this type of mass including dacryocystocele, dermoid/epidermoid cyst, encephalocele, nasal glioma, hemangioma, rhabdomyosarcoma, neuroblastoma, and lymphoma. 2 Although these lesions are uncommon, they are generally contained within the sinonasal complex or maxilla.…”

“…Sinonasal myxomas are benign, locally invasive mesenchymal tumors described almost exclusively in children, with an average age of 15.4 months. They generally require excision, as they cause painless swelling followed by nasal congestion, obstruction, and epistaxis 1 . Sinonasal myxomas are often diagnoses of exclusion, with the broader differential for this type of mass including dacryocystocele, dermoid/epidermoid cyst, encephalocele, nasal glioma, hemangioma, rhabdomyosarcoma, neuroblastoma, and lymphoma 2 .…”

Odontogenic Cysts and Tumors of Maxilla and Maxillary Sinus (A Clinicopathological Analysis)

“…This lesion usually arises within the maxillary bone and invades the adjacent sinus; however sinonasal counterparts have been rarely reported in the literature. (21) There are different theories regarding the etiology of this lesion in sinus. Myxomas may arise from modified fibroblasts associated with tooth germ in which these altered cells can hyper secrete mucin.…”