Alveolar soft part sarcoma.

Alveolar soft part sarcoma is a neoplasm that usually presents as a slow-growing mass located in an extremity and is most often initially discovered by the patient, who then seeks medical evaluation (1, 2). Local pain or symptoms produced by metastases as the initial manifestations of this neoplasm are unusual (2). A case is presented in which CT demonstrated multiple metastases to the central nervous system that produced headaches as the first symptoms in a patient with alveolar soft part sarcoma.