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Congress: ECR25
Poster Number: C-14322
Type: Poster: EPOS Radiologist (educational)
DOI: 10.26044/ecr2025/C-14322
Authorblock: M. A. Gad, M. Salah Ayyad; Mansoura/EG
Disclosures:
Mona Ali Gad: Nothing to disclose
Mohamed Salah Ayyad: Nothing to disclose
Keywords: CNS, Neuroradiology brain, MR, MR-Angiography, MR-Diffusion/Perfusion, Contrast agent-intravenous, Diagnostic procedure, Acute, Inflammation, Ischaemia / Infarction
Background

The corpus callosum is the largest set of commissural fibers. It conveys neural information from one hemisphere to the other and plays a crucial role in speech-language functions.

Anatomically, the corpus callosum is composed of 4 parts.

Fig 1: (A) Sagittal T1WI shows the parts of corpus callosum. (B) Diagram shows the arterial supply of corpus callosum. (@https://neupsykey.com/blood-supply-of-the-brain/).
Fibers of the genu contribute to the forceps minor, connecting both frontal cortices. The splenium contributes to the forceps major, connecting both occipital lobes. The body fibers form the corona radiata. Finally, the orbital regions of frontal lobes connect via the rostrum(1).

Blood Supply:

CC is mostly supplied via the pericallosal artery (a branch of ACA). The splenium is the exception as it receives vascular input from the vertebrobasilar system via the terminal & choroidal branches of PCA. Venous drainage occurs via callosal & calloso-cingulate veins into internal cerebral veins (2).
GALLERY