ABSTRACT
Objective: to describe a new case of granulocytic sarcoma or chloroma. Description: a 54 year-old female patient presented with generalized epileptic crisis, right hemiparesis and aphasia. She had a history of acute myeloblastic leukemia that was properly treated. The CT scan showed a spontaneous hyperdense frontal left tumoral lesion with mass effect. The MRI showed a hipointense lesion. Intervention: through a craniotomy the tumor was removed. Postoperatively the outcome was uneventful. Pathology informed granulocytic sarcoma. The patient received radiotherapy but months later died of a leukemia recurrence. Conclusion: surgical removal of a chloroma reduced its mas effect and the patient improved neurologically, but the process could hardly be controlled definitively