This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology and Rheumatology, Subject name: Medicine
This patient presented with hearing loss and left ear fullness. What is the diagnosis? 
Select and explain. 
A. Cholesteatoma, B. Fracture of the temporal bone, C. Ochronosis, D. Otomycosis
B: Fracture of the temporal bone
Answer: B: Fracture of the temporal bone 
Explanation: Answer FB. racture of the temporal boneThe patient has a left post-auricular ecchymosis, or Battle's sign, which can suggest underlying trauma to the temporal bone, as in this case. The patient had been intoxicated and recalled no trauma. Other signs of skull fracture include "raccoon eyes" when trauma involves the frontal bones of the skull.