Bilateral Proptosis as an Unusual Presentation of Adult-Onset Alveolar-Type Rhabdomyosarcoma of Ethmoid Sinus: A Case Report.

Rhabdomyosarcoma (RMS) exhibits varying degrees of clinical manifestations, and one of the determining factors is its primary site of origin. Ocular proptosis is an infrequent presentation of parameningeal RMS. The growing tumor in spacious environments such as air-filled sinuses can obscure its early detection, leading to late disease intervention.