Huge Sized Intraventricular Teratoma

Teratomas are rare neoplasms, constituting 0.5% to 1.2% of all intracranial tumors;nevertheless, they account for 2% to 4% of intracranial tumor in children. The most common location for these tumor is in the midline pineal region, but teratoma in the lateral ventricle is very rare. A report is presented here of the total extirpation of a huge sized teratoma located in the lateral ventricle of a 4-year old man. This unique tumor is revealed various tissue components, ectodermal and mesodermal derivatives such as skin appendages and neuroglial tissue partially lined by ependmal cells.