Surgical neuroanatomy of the antero-lateral temporal lobectomy

THESES

SURGICAL NEUROANATOMY OF THE ANTERO-LATERAL TEMPORAL LOBECTOMY (ABSTRACT)^*. DISSERTATION. BRASÍLIA, 1999.

NICANDRO FIGUEIREDO^**

Antero-lateral temporal lobectomy is being performed in the treatment of several neurosurgical pathologies, mainly neoplasms, besides contusions, hematomas, ischemias, swelling, and other expansive lesions that affect the temporal lobe. The resection of the temporal lobe usually seeks, besides removing the lesion, decompressing adjacent structures, particularly the brain stem. Although temporal lobectomy has been used for many decades in neurosurgery, the majority of publications emphasizes temporal lobectomy for the removal of medial structures of the temporal lobe in the treatment of epilepsy. Studies concerning antero-lateral temporal lobectomy were much more limited.

In this study, 50 hemispheres of 25 brains of human adult cadavers were dissected. A wide revision of the functional anatomy of the temporal lobe was done, and we performed the anatomical study of the cortical surface, followed by successive coronal cuts of the temporal lobe going 6 cm antero-posteriorly, in order to study its deeper anatomy. This way we obtained the measurements and made the analysis of different anatomical parameters of the temporal lobes and adjacent regions, on the surface as well as in the coronal cuts, followed by a simulation of antero-lateral temporal lobectomy in each coronal cut of the brain hemispheres.

The study allowed us to demonstrate the details, not adequately shown until now, of the surgical anatomy, including anatomical reference points, distances and ideal angulations for a satisfactory resection of the antero-lateral portion of the temporal lobe.

KEY WORDS: temporal lobe, temporal lobectomy, surgical neuroanatomy, temporal lobe lesions.

** Address: Rua G, n^o 42, Edifício Nice, apto 43, Bairro Bosque da Saúde, 78050-160 Cuiabá MT, Brasil. E-mail: [e-mail]

*

Neuroanatomia cirúrgica da lobectomia temporal ântero-lateral (Resumo). Dissertação de Mestrado, Universidade de Brasília (Área: Neuroanatomia e Neurocirurgia). Orientador: Armando José China Bezerra. Co-orientadora: Yolanda Galindo Pacheco.

Publication Dates

• Publication in this collection
  06 Dec 2000
• Date of issue
  June 1999