This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Complications of Chronic Otitis Media, Subject name: ENT
[{'content': 'CSOM with Picket fence fever is seen in \nSelect and explain. \nA. Meningitis, B. Sigmoid Sinus Thrombosis, C. Brain Abscess, D. Extradural Abscess', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Sigmoid sinus thrombosis/lateral sinus thrombosis is an inflammation of inner wall of lateral venous sinus with formation of an intra sinus thrombus It occurs as a complication of chronic suppuration of middle ear or acute coalescent mastoiditis, and cholesteatoma Picket fence fever temperature never comes back to normal baseline. Remittent fever. Complications of CSOM - Intra temporal Intracranial Mastoiditis Meningitis - m/c Petrositis Brain abscess Facial paralysis Extradural abscess Labyrinthitis Subdural abscess Lateral sinus thrombophlebitis Otitic hydrocephalus', 'role': 'assistant'}]