Raja Sekaran Kattumannarkudi Ramalingam MBBS, Presenter: Nothing to Disclose

Sravanthi Mantripragada MBBS, Abstract Co-Author: Nothing to Disclose

Natesan Chidambaranathan MD, Abstract Co-Author: Nothing to Disclose

To illustrate the MR features which help in characterisation of corpus callosal lesions To depict the lesions unique to corpus callosum

               The corpus callosum is susceptible to a variety of pathological processes, either primary pathologies or lesions arising from adjacent structures. MRI is the modality of choice for evaluation of corpus callosal lesions and on most occasions is specific and obviates the need for any invasive procedures. Here, we present salient MR features of a collection of common and uncommon conditions.Salient MR features like location, extent, signal intensity and contrast enhancement patterns are useful to reach a specific pathological diagnosis . • Lesions occur in specific locations (as illustrated by primary demyelination occuring at the calloso-septal interface, focal edema as a transient splenial lesion, drug toxicity at the posterior body and splenium and changes due to rapid decompression of longstanding hydrocephalus sparing the splenium and lipoma in the pericallosal area) • Lesions exhibit specific signal intensity, extent and contrast enhancement patterns (butterfly pattern of high grade tumors with necrosis or homogenous enhancement, fat signal intensity of lipoma) • Volume of the corpus callosum (reduction in perinatal insult or demyelination), or association with developmental anomalies  

http://abstract.rsna.org/uploads/2014/14009044/14009044_8h96.pdf

Kattumannarkudi Ramalingam, R, Mantripragada, S, Chidambaranathan, N, MR Spectrum of Corpus Callosal Lesions: A Pictorial Essay.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14009044.html