In the past laryngeal pseudosarcomas have been diagnosed as a. carcinosarcomas, b. pleomorphic or spindle cell carcinomas, or c. squamous cell carcinomas with pseudosarcomatous reactive stroma. Arguments have centered around the nature of the sarcomatous stroma. Because of this confusion there is disagreement as to the treatment and prognosis of these tumors. Seven pseudosarcomas were treated between 1969-1979,4 were pedunculated and 3 exophytic. Treatment consisted of primary CO,, n irradiation in 2 patients, surgery in 3 cases and combined therapy in 2 cases with no recurrences. Three of the 7 have died, 1 of a poorly differentiated adenosquamous carcinoma of the right main stem bronchus and the other 2 of natural causes at ages 77 and 85. From a review of the literature as well as our experience, we have reached the following conclusions. 1. Stromal cells are a malignant morphologic variant of the squamous cell and are best termed spindled cells. 2. Neck metastasis at any time is a poor prognostic sign. 3. The pattern of metastasis and survival seems to parallel laryngeal squamous cell carcinoma, and thus treatment should be similar for given stages.