This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
Neglected Whitlow may lead to necrosis of 
Select and explain. 
A. Distal 4/5th of terminal phalanx, B. Whole of tip of terminal phalanx, C. Only the tip of terminal phalanx, D. None of the above
A: Distal 4/5th of terminal phalanx
Answer: A: Distal 4/5th of terminal phalanx 
Explanation: Pulp space of fingers contains subcutaneous fat arranged in tight compaments. These compaments are formed by fibrous septa extending from the skin to the periosteum of terminal phalanx. Whitlow or pulp space infection is treated by lateral incision Complication is ischemic necrosis of distal 4/5 the of terminal phalanx due to vessel occlusion. Ref: BD Chaurasia Human Anatomy 5e vol 2 pg 123.