The role of posttraumatic intracranial cysts in the pathogeny of late epileptic seizures as exemplified by two patients.
Intracranial cysts are most often found in the lateral sulcus between the cerebral hemispheres and at the midline in the posterior cranial cavity. Covered with the clear or turbid arachnoidea, they are filled with a clear, colorless or slightly yellow cerebrospinal fluid, sometimes they have a considerable size and tend to be an unexpected discovery during an operation for symptoms of a brain tumor. The symptoms depend on the cyst's location and size. These are: headaches, epileptic seizures, sometimes deficiency signs. Located in the posterior cranial cavity they can imitate a cerebellar tumor (1, 3, 5). Intracranial cysts can be a result of abnormal ontogenesis or sometimes following a head injury (2). Since there is little information in literature on the incidence of posttraumatic intracranial cysts and their clinical picture, we find it desirable to present patients treated at Neurology Clinic of the Medical Academy in Lublin. All patients underwent a neuropsychological examination.