Experience of Non-Hodgkin's Lymphoma in the Central Nervous System Presented as Neurological Deficit from 2017-2021 in a Medical Center in Mexico City.

Aim: To show the oddity of primary central nervous system lymphoma (PCNSL) and illustrate the histopathological and magnetic resonance imaging (MRI) characteristics of this disease entity.

Material And Methods: We obtained the histopathological diagnosis through stereotactic biopsy, and all lesions were resected at the Department of Neurosurgery, Centro Medico Nacional 20 de Noviembre.

Results: We identified and included six lymphoma cases in a 5-year period: none of the patients had human immunodeficiency virus (HIV) infection; none were Epstein-Barr virus (EVB)-positive; all of them received chemotherapy and radiotherapy; and the survival rate was ≥1 year.

[Intracranial electrode recording prognostic value in anterior temporal lobectomy and hypocampectomy].

Unlabelled: The experience obtained in the Epilepsy Clinic of the General Hospital of México in regard to the use of intracraneal electrodes to determine the epileptic tissue that must be resected in an anterior temporal lobectomy with amygdalo-hippocampectomy in patients with intractable mesial temporal lobe seizures is described. The data obtained while recording the electroencephalographic activity with these electrodes to learn about its impact in the postsurgical result (seizure reduction and complications) both in the first year and long-term (up to 17 years) follow-up was analyzed. Fifty seven patients implanted between years 1993-2008 were included.

[Surgical treatment for trigeminal neuralgia].

We treated 50 patients at the Hospital de Especialidades, Centro Médico Nacional La Raza, IMSS, in Mexico City, with trigeminal neuralgia by two procedures: a) microvascular decompression of the trigeminal nerve with asterional craniectomy, or b) compression of Gasser's nodule by percutaneous puncture. Each patient was allowed to choose one of the procedures after informed consent. Twenty two patients underwent percutaneous puncture, while 28 patients underwent microvascular decompression.