What's your diagnosis? You're looking in the patient's left ear. I'll post the correct answer in a couple of days!
Correct answer: Miringitis bullosa. An inflammation of the tympanic membrane, which often also causes otitis media. In this case, the tympanic membrane is also blistered and filled with pus. The cause isn't well understood, but based on the flu-like symptoms the patients develop it's probably a viral infection.