Eur J Anat, 13 (1): 37-41 (2009)

The Probst bundle associated with anomalies of the precommissural separated fornix in an acallosal brain

Yousefi B., Kokhaei P.

Department of Anatomical Sciences, School of Medicine, Semnan University of Medical Sciences, P.O. Box: 35131-38111, Semnan, Iran; Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran

ABSTRACT Dissection of the brain disclosed a unique form of the Probst bundle and a rare variation of the precommissural fornix. The latter showed an unusual size, branches and path on the medial surface of hemisphere. Its posterior branch continued to curve parallel with the posterior commissural fornix to follow an abnormal path and end in the hypothalamus. The Probst bundle was intermingled with the separated fornix in an anteroposterior direction as well as in the anterior and posterior parts in an atypical way. Focusing on such morphological abnormalities may help to gain a better understanding of the pathophysiology of brain disorders.

Keywords: adult, anatomical variation, article, brain disease, brain fornix, cadaver, case report, corpus callosum agenesis, human, human tissue, lateral brain ventricle, male, neuroanatomy, pathophysiology, probst bundle