title: [Association of three anatomical variants of the anterior cerebral circulation].
abstract: BACKGROUND
  As part of a study of the microsurgical anatomy of the pericallosal artery, we describe one brain with three unusual anatomical variants.
  
  
  METHODS
  From the autopsy of a 45 year-old female, we extracted the brain and all the arterial blood vessels were washed off with saline solution to be injected afterwards with red latex. The brain was then immersed in 10% formalin for two months. Finally, we dissected and measured the internal carotid artery segments, using a digital Vernier caliper under a Carl Zeiss OPMI surgical microscope with magnification of 6x up to 40x.
  
  
  RESULTS
  The brain's weight was 1250 grams and three rare anatomical variants were found: 1) right accessory middle cerebral artery (ACMA-d), 2) right bihemispheric anterior cerebral artery (ACABihem-d), 3) median artery of the corpus callosum (AMCC).
  
  
  CONCLUSIONS
  The association of the anatomical variations described previously is inconstant; furthermore, their appearance in a single case is rare.
authors: Laboratorio de Anatomía Microquirúrgica del Sistema Nervioso, Departamento de Anatomía, Facultad de Medicina, Universidad Nacional Autónoma de México, UNAM, México, D.F., Mexico. gervith_rs@hotmail.com
authors: Gervith
authors: G
authors: Reyes-Soto
authors: Julio
authors: J
authors: Pérez-Cruz
authors: Luis
authors: L
authors: Delgado-Reyes
authors: César
authors: C
authors: Ortega-Gutiérrez
authors: Daniela
authors: D
authors: Téllez-Palacios
mesh_terms: D020771:Anterior Cerebral Artery / Q000033:anatomy & histology; D001921:Brain / Q000033:anatomy & histology; D002102:Cadaver; D002343:Carotid Artery, Internal / Q000033:anatomy & histology*; D002536:Cerebral Arteries / Q000033:anatomy & histology*; D002560:Cerebrovascular Circulation; D003337:Corpus Callosum / Q000033:anatomy & histology / Q000098:blood supply*; D005260:Female; D006801:Humans; D008875:Middle Aged; D020768:Middle Cerebral Artery / Q000033:anatomy & histology*; D009929:Organ Size