AJNR:1 0, September/October 1989 ABBREVIATED REPORTS S67

Chloromas (granulocytic sarcomas) are solid tumors of myeloge-nous origin associated with acute and chronic myelocytic leukemia. Although chloromas can be found almost anywhere in the body, intracranial involvement of the CNS is particularly rare. The CT appearance of intracranial chloromas has been described [1, 2). This report describes the MR appearance of intracranial chloromas in a patient with chronic myelocytic leukemia. Case Report A 25-year-old man, previously in good health had severe head-aches followed by diplopia. Evaluation by an ophthalmologist revealed a right sixth-nerve palsy, and the patient was admitted to the hospital for evaluation. Unenhanced CT of the head showed hyperdense lesions of the left frontal and bilateral temporal lobes, associated with some surrounding edema (Fig. 1). Enhancement of these lesions after administration of contrast material was uniform. The WBC wa