Introduction. Squamous cell carcinoma ex-pleomorphic adenoma (CRAP) is a malignant and rare mixed tumor. We report a new case.Observation. A seventy-year-old woman consulted for a mass in the left hemi-face having evolved over the last 20 years. The physical examination revealed a hard and large tumor invading all the palate. Computed tomography revealed a heterogeneous 8.5 cm long maxillary mass. The diagnosis of CRAP was made oil a biopsy. A histological study confirmed the diagnosis after surgical resection of the tumor, specifying its noninvasive character.Discussion. CRAP is generally located in the parotid gland; it is very rarely located in the palate. The degenerated epithelial component generally corresponds to an adenocarcinoma or all undifferentiated carcinoma: squamous-cell carcinoma is more rarely reported. The prognosis is excellent for the micro and noninvasive types. Surgery remains the treatment of choice. (C) 2009 Elsevier Masson SAS. All rights reserved.

INTRODUCTION:Squamous cell carcinoma ex-pleomorphic adenoma (CXAP) is a malignant and rare mixed tumor. We report a new case.OBSERVATION:A seventy-year-old woman consulted for a mass in the left hemi-face having evolved over the last 20years. The physical examination revealed a hard and large tumor invading all the palate. Computed tomography revealed a heterogeneous 8.5cm long maxillary mass. The diagnosis of CXAP was made on a biopsy. A histological study confirmed the diagnosis after surgical resection of the tumor, specifying its noninvasive character.DISCUSSION:CXAP is generally located in the parotid gland; it is very rarely located in the palate. The degenerated epithelial component generally corresponds to an adenocarcinoma or an undifferentiated carcinoma; squamous-cell carcinoma is more rarely reported. The prognosis is excellent for the micro and noninvasive types. Surgery remains the treatment of choice.