Multisystem Atrophy versus Parkinsonism-MRI- Teaching Points

What your Neurologist wants to know?

 Brain MRI in patients with MSA-P and MSA-C may reveal atrophy of the putamen, pons, and middle cerebellar peduncles. On T2 MRI sequences, signal changes include hypointensity of the posterior putamen (also described as a slit-like void), a hyperintense lateral putaminal rim, and hyperintensities of the middle cerebellar peduncles. These changes are supportive of the diagnosis of MSA rather than idiopathic Parkinson disease.  The "hot cross bun sign" refers to hyperintense T2 signal in the shape of a cross within the pons that arises from degeneration of transverse pontocerebellar fibers.

From Sumer's Radiology Site http://www.sumerdoc.blogspot.com -The Top Radiology Magazine. Teleradiology Providers at www.teleradproviders.com Mail us at [e-mail]

Source: Sumer's Radiology Site - April 4, 2013 Category: Radiologists Authors: Sumer Sethi Source Type: blogs