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: Pathology
Skin condition which is associated with Subepidermal bullae with inflammatory infiltration 
Select and explain. 
A. Pemphigus follaceus, B. Porphyria cutanea tarda (PCT), C. Epidermolysis bullosa, D. Bullous pemphigoid
D: Bullous pemphigoid
Answer: D: Bullous pemphigoid 
Explanation: Bullous pemphigoid is the prototype of subepidermal bullae with inflammation. large bullae  develop in the trunk, flexor  surfaces and intertriginous regions.  Detachment of the epidermis from the underlying basement membrane is related to autoantibodies to desmomal proteins.
Epidermolysis bullosa and PCT manifest subepidermal bullae without inflammation.