This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
Kernohan's notch is seen in the following organ injury: 
Select and explain. 
A. Brain, B. Lungs, C. Right lobe of the liver, D. Left lobe of the liver
A: Brain
Answer: A: Brain 
Explanation: 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.