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: Surgery
Ainhum is seen in 
Select and explain. 
A. Base of great toe, B. Base of fingers tips, C. Base of toe, D. Ankle
C: Base of toe
Answer: C: Base of toe 
Explanation: Ainhum : is a condition usually affecting Negro males (but some females) who have run barefoot in child hood.
Clinical Features : A fissure appears at interphalangeal joint of toe -usually the fifth. This fissure becomes a fibrous band, encircles the digit and causes necrosis.