Rare Intracranial Locations of Chronic Subdural Hematoma

Chronic subdural hematoma is defined as an extra-axial collection of blood products, accumulated in the subdural space between the dura mater and arachnoid. This entity is usually located in the supratentorial area, over the cortical convexity. A location in the posterior fossa or in the interhemispheric fissure is uncommon. Clinical manifestations for these unusual locations vary, and the radiological diagnosis can be challenging. The optimal treatment remains controversial. Surgery is usually indicated for symptomatic patients with obvious neurologic deterioration. However, conservative treatment is discussed for asymptomatic or mildly symptomatic patients providing cautious follow-up.