Hypopharyngeal Dedifferentiated Liposarcoma in the MDM2 Era: A Case Report and Short Review

Abstract EN

Pharyngeal liposarcomas are very rare; still more rare are dedifferentiated liposarcomas in the pharynx.

An 82-year-old man presented with dysphagia, voice changes, weight loss, nasal regurgitation of liquids, and coughing spells.

A 3.5 cm mass was identified in the hypopharynx.

The mass was biopsied and diagnosed as a benign fibroepithelial polyp.

Continued symptoms and airway obstruction prompted a pharyngectomy, and the mass was then diagnosed as dedifferentiated liposarcoma.

Due to infrequency and subtle histological findings, liposarcomas of the head and neck can be misdiagnosed and recur.