This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Paranasal Sinuses, Subject name: ENT
Ground glass appearance of maxillary sinus is seen in? 
Select and explain. 
A. Maxillary Sinusitis, B. Maxillary Carcinoma, C. Maxillary polyp, D. Maxillary fibrous dysplasia
D: Maxillary fibrous dysplasia
Answer: D: Maxillary fibrous dysplasia 
Explanation: Ans. (d) Maxillary fibrous dysplasiaRef: Ballenger's Otorhinolaryngology: Head & Neck Surge: by James Byron Snow, Phillip A. Wackym, John Jacob Ballenge centennial ed p-506