Kernohan's notch is seen in the following organ injury:: (A) Brain, (B) Lungs, (C) Right lobe of the liver, (D) Left lobe of the liver
Answer is A. When severe brain swelling or a space occupying lesion causes raised intracranial pressure above the tentorium, compression of the midbrain against the free edge of the tentorium may occur. This may be unilateral causing grooving of a cerebral peduncle called Kernohan's notch. Ref: Essentials of Forensic Medicine and Toxicology by Narayan Reddy, 27th edition, Page 225.