Spectrum of Corpus Callosum Lesions: Beyond the Typical 'Butterfly' Differential

This will be an image-rich exhibit focusing on CT, MR, and angiogram features of CC lesions. Through our cases and review of the literature, we will highlight the key features leading to a specific diagnosis, which will aid in corrrect patient management. Case examples will include but will not be limited to congenital (agenesis of CC, lipoma), neoplastic (glioblastoma, lymphoma, metastasis), infectious (abscess, septic emboli, ventriculitis, HIV encephalitis), toxic/metabolic (alcohol demyelination, PRES, transient splenic lesion), vascular (arteriovenous malformation, developmental venous anomaly), genetic (X-linked adrenoleukodystrophy, metachromatic leukodystrophy, mucopolysaccharidosis), inflammatory (multiple sclerosis (MS), tumefactive MS), traumatic (hematoma, hemorrhagic and non-hemorrhagic diffuse axonal injury, fat emboli), and ischemic (infarct, hypoxic ischemic encephalopathy, Wallerian degeneration). This series aims to familiarize radiologists with the diagnostic possibilities and salient radiologic features for narrowing the CC lesion differential.