This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Blood Vessels), Subject name: Pathology
Most common site of glomus tumor is - 
Select and explain. 
A. Under fingernails, B. Under toenails, C. Neck, D. Axilla
A: Under fingernails
Answer: A: Under fingernails 
Explanation: Ans. is 'a' i.e., Under fingernails Glomus tumor (Glomangioma)o Benign tumor arising from the smooth muscle cells of the glomus body which is an arteriovenous anastomosis involved in thermoregulation.o Most commonly present in the distal portion of the digits (under fingernails).o Histologically, there is presence of branching vascular channels and stroma containing nests aggregates of glomus cells arranged around vessels.