0 Boomerang sign

MCQ 120

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.

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.

MedicoNotebook - Founder : DrShiviMudgal , Co-Founder : DrAyushGoel

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