Abstract
Granulocytic sarcoma, also termed as chloroma, is a rare tumor derived from myeloblast. This tumor can be found in any location of the body, but rarely causes facial palsy. We experienced 2 cases of granulocytic sarcoma with facial nerve palsy. Case 1 is a 20-year-old man who presented with right facial weakness. He had a past medical history of acute lymphocytic leukemia. Magnetic resonance (MR) imaging showed a cerebellopontine angle tumor, which was diagnosed recurrent leukemia, namely granulocytic sarcoma. Case 2 is a 40-year-old woman who was under treatment of adult acute myelocytic leukemia, and presented with facial weakness. MR imaging showed a large tumor in the temporal bone. She was diagnosed of granulocytic sarcoma. We strongly suggested that MR imaging or computed tomography should be performed if a patient with the past history of leukemia with facial palsy.
