Extramedullary hematopoiesis simulating parasagittal meningioma.
We report a patient with polycythemia vera and myeloid metaplasia of nine years duration who developed raised intracranial pressure related to a mass obliterating the sagittal fissure. Although clinically and radiologically simulating a meningioma, biopsy revealed extramedullary hematopoiesis involving the falx cerebri. Although uncommon, this case illustrates that myeloproliferative disease can present with symptomatology and radiologic features similar to primary intracranial tumours.
D000328:Adult; D001927:Brain Diseases / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D006402:Hematologic Diseases / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D006410:Hematopoiesis; D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000175:diagnosis*; D008579:Meningioma / Q000175:diagnosis*; D011087:Polycythemia Vera / Q000150:complications