Abstract
We report the clinicopathologic findings of 10 cases of primary laryngeal and hypopharyngeal liposarcoma. The tumors occurred in patients ranging in age from 37 to 77 years. They showed a marked male to female predominance of 9 to 1. The tumors, which occurred exclusively in the supraglottic larynx or hypopharynx (pyriform sinus), caused airway obstruction; this was the most common presenting symptom. All of the cases were well-differentiated liposarcomas (grade I). Atypical cells, scattered lipoblasts, and infiltration differentiated malignant laryngeal fatty tumors from benign ones. To date, none of these tumors has metastasized; however, multiple recurrences are common. Surgery is the treatment of choice; radiotherapy should be decided on an individual basis.
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