Multiple spinal granulocytic sarcomas simulating neurofibromatosis.

Granulocytic sarcoma may develop at any time during the course of acute or chronic myelogenous leukemia. Symptomatic because of their invasive nature and mass effect, these tumors may occur in any anatomic site. Granulocytic sarcoma is diagnosed in a minority of patients with myelogenous leukemia, but when present, granulocytic sarcoma commonly affects the CNS. The most common manifestation of granulocytic sarcoma in the spine is spinal cord compression due to an extradural mass. We recently observed an unusual case of cervical radiculopathy with multiple spinal granulocytic sarcomas.