Board Review 1 – Case 10

Neuroradiology board review. This lecture is geared towards the ABR core exam for residents, but it would be useful for review for the ABR certifying exam or certificate of added qualification (CAQ) exam for neuroradiology.

More description and the answer (spoiler!) are seen below the video.

This case shows bilateral areas of reduced diffusion in the medial thalami, concerning for infarcts. When the bilateral thalami are involved by infarcts, the differential includes artery of Percheron infarct, basilar tip occlusion, and venous infarct.

The diagnosis is: artery of Percheron infarct

The artery of Percheron is a variant in which the thalamic perforators from the PCA are supplied from a trunk from one P1. When this trunk is occluded, bilateral thalamic infarcts can occur.