Spindle cell carcinoma is an aggressive variant of squamous cell carcinoma which recurs frequently and metastasize. It is a rare biphasic tumor consisting of squamous carcinoma associated with a malignant spindle stromal compound, but of an epithelial origin. Selective sampling of this specimen for possible transitional areas of squamous and spindle cell appearance are helpful in establishing the diagnosis. We report the occurrence of this neoplasm in the lower left retromolar region as an ulceroproliferative lesion in a 62-year-old male patient.
Keywords: Spindle cell carcinoma, biphasic tumor, sarcomatoid carcinoma.