Annals of Indian Academy of Neurology
CASE REPORT
Year
: 2012  |  Volume : 15  |  Issue : 2  |  Page : 151--157

Boomerang sign: Clinical significance of transient lesion in splenium of corpus callosum


Hardeep Singh Malhotra, Ravindra Kumar Garg, Mukund R Vidhate, Pawan Kumar Sharma 
 Department of Neurology, Chhatrapati Shahuji Maharaj Medical University, Uttar Pradesh, Lucknow, India

Correspondence Address:
Ravindra Kumar Garg
Department of Neurology, Chhatrapati Shahuji Maharaj Medical University, Uttar Pradesh, Lucknow - 226 003
India

Transient signal abnormality in the splenium of corpus callosum on magnetic resonance imaging (MRI) is occasionally encountered in clinical practice. It has been reported in various clinical conditions apart from patients with epilepsy. We describe 4 patients with different etiologies presenting with signal changes in the splenium of corpus callosum. They were diagnosed as having progressive myoclonic epilepsy (case 1), localization-related epilepsy (case 2), hemicrania continua (case 3), and postinfectious parkinsonism (case 4). While three patients had complete involvement of the splenium on diffusion-weighted image («DQ»boomerang sign«DQ»), the patient having hemicrania continua showed semilunar involvement («DQ»mini-boomerang«DQ») on T2-weighted and FLAIR image. All the cases had noncontiguous involvement of the splenium. We herein, discuss these cases with transient splenial involvement and stress that such patients do not need aggressive diagnostic and therapeutic interventions. An attempt has been made to review the literature regarding the pathophysiology, etiology, and outcome of such lesions.


How to cite this article:
Malhotra HS, Garg RK, Vidhate MR, Sharma PK. Boomerang sign: Clinical significance of transient lesion in splenium of corpus callosum.Ann Indian Acad Neurol 2012;15:151-157


How to cite this URL:
Malhotra HS, Garg RK, Vidhate MR, Sharma PK. Boomerang sign: Clinical significance of transient lesion in splenium of corpus callosum. Ann Indian Acad Neurol [serial online] 2012 [cited 2022 Dec 5 ];15:151-157
Available from: https://www.annalsofian.org/article.asp?issn=0972-2327;year=2012;volume=15;issue=2;spage=151;epage=157;aulast=Malhotra;type=0