Intracranial Mature Teratoma: A Case Report

Abstract

Teratomas are the most common type of Germ Cell Tumors (GCTs). GCTs are classified as extragonadal, if there is no evidence of a primary tumor in neither the testicles, nor in the ovaries. Intracranial Mature Teratomas are tumors with a very low incidence, and clear male predominance. We present the case of a 21 year-old female patient, with a history of two seizures 15 days prior to admission, without any abnormalities upon physical examination. The Magnetic Resonance Imaging (MRI) performed at the admission evidenced an expansive, heterogeneous lesion in the frontal lobe, hypointense on T1-weighted images, hyperintense on T2-weighted images, and restriction on the diffusion imaging and ADC-mapping. The patient underwent microsurgical resection, and it was possible to achieve a near-total resection. During surgery, a well-defined capsule was identified, which was removed after adequate debulking. Tissues resembling hair were taken from inside the lesion. The patient recovered well, without any neurological deficits, and no further intervention was necessary. The authors aim to describe this rare pathology and their option for a surgical approach.