This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Plastic & Reconstructive Surgery, Subject name: Surgery
Potts puffy tumor occurs as complication of which sinusitis: 
Select and explain. 
A. Frontal, B. Sphenoid, C. Ethmoid, D. None of the above
A: Frontal
Answer: A: Frontal 
Explanation: Ans. (a) Frontal* Pott Puffy Tumor occurs if infection of frontal sinusitis spreads to the marrow of the frontal bone, causing localized osteomyelitis with bone destruction that can result in a doughy swelling of the forehead.* Surgical drainage and debridement must be undertaken.