see also Tumor associated cysts.
The most common tumors are, hemangioblastoma, pilocytic astrocytoma, ganglioglioma, pleomorphic xanthoastrocytoma, tanycytic ependymoma, intraparenchymal schwannoma, desmoplastic infantile ganglioglioma.
Cystic meningioma is a rare form of intracranial meningioma. Meningiomas are typically solid tumors but may rarely have cystic components. The diagnosis of cystic meningioma is clinically challenging as the finding of multiple intra-axial tumors, including metastatic tumors, is relatively common. We report a case of cystic meningioma initially diagnosed as a metastatic tumor from a recurrence of acute lymphoid leukemia. However, postoperative histopathological examination demonstrated an atypical meningioma 1).
Differential diagnosis of a cystic lesion must contemplate primary neoplasm, metastasis (lung and breast neoplasms are the most common cause), brain abscess, tuberculoma and neurocysticercosis. (NCC).
see Cystic metastases.
see Cystic glioma.
Other intra-axial cysts, e.g. intracranial arachnoid cyst, neuroglial cyst, porencephalic cyst.