Q. Boomerang sign is seen on MRI of Brain when the lesion is located in ?
a. Genu of Corpus callosum
b. Body of Corpus callosum
c. Splenium of corpus callosum
d. Any of the above.
ANSWER:
Ans: C
It is Boomerang shaped splenial lesions, visualized as hyperintense lesions on T2-weighted images, fluid attenuated inversion recovery, and diffusion-weighted MR images.
Differential Diagnosis :
Transient lesion in splenium
Ischemia
Posterior reversible encephalopathy syndrome
Diffuse axonal injury
Multiple sclerosis
Marchiafava–Bignami disease
Lymphoma, and
Extrapontine myelinolysis.
Apart from brain imaging : Boomerang sign can also be seen in peroneus brevis split syndrome.
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