This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: ENT
"Luc's abscess" is 
Select and explain. 
A. Abscess over temporal region, B. Abscess involving external auditory canal, C. Abscess over mastoid, D. Abscess along sternomastoid muscle
B: Abscess involving external auditory canal
Answer: B: Abscess involving external auditory canal 
Explanation: Luc's abscess - Under periosteum of the roof of bony external auditory canal Ref : ENT textbook by Dhingra 6th edition Pgno : 51-53