This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Imaging of Alveolar Lung Disease, Subject name: Radiology
Panda sign is suggestive of- 
Select and explain. 
A. Sarcoidosis, B. Silicosis, C. Wegenersgranulomatosis, D. Asbestosis
A: Sarcoidosis
Answer: A: Sarcoidosis 
Explanation: Ans. is 'a' i.e., Sarcoidosis Panda signo It is a radiogical sign seen on Gallium scans op patients usually suffering from sarcoidosis,o It depicts increased uptake of gallium in the nasopharynx. lacrymal glands and parotid glands due to inflammation resembling dark markings an pandas face.