Abstract
Chronic subdural haematoma is a very common disease of older age. The treatment is usually simple, consisting of evacuation, usually via a burr-hole craniotomy.
A more complicated clinical course may be presented by the presence of subdural membranes arising out of increasing fibrotization. Very occasionally, this may predominate and lead to development of an organized mass.
Diagnosis based on CT is not possible, because only hyperdense membranes are usually shown. Repeated evacuations with irrigation are unsuccessful; all these cases are finally treated by removal of an organized mass by craniotomy.
We present three such cases from 201 (1.5%) chronic subdural haematomas treated at our department between 2005 and 2010. Clinical status and CT findings improved after radical elimination of organized matter in all cases