A 17-year-old girl with a long history of migraines presents with a 24-hour history of headache. She does, however, mention that this headache is a little different to her usual migraine attacks since the light hurts her eyes and normal sounds seem to make her uncomfortable. Her mother states that her daughter has vomited 3 times in the past few hours before coming to the emergency department. Her only history of note is that she had childhood asthma and a recent upper respiratory tract infection which started about 4 days ago.On examination she has a temperature of 39 degrees, there is also no evidence of any rashes. There is no evidence of papilloedema on fundoscopy. What is the most likely diagnosis?

The patient's symptoms suggest a case of bacterial meningitis possibly originating from a recent upper respiratory infection. It's crucial she seek immediate medical attention due to the serious and rapid progression of this condition.

Explanation:

The information provided on the 17-year-old patient suggests that she is likely suffering from bacterial meningitis. This condition is known to trigger severe headaches, heightened sensitivity to light and sound, and high fever. The recent upper respiratory tract infection could have acted as a gateway for the bacteria to reach the meninges.

Vomiting and increased body temperature are also common symptoms of bacterial meningitis. It is imperative to seek immediate medical treatment as bacterial meningitis can progress rapidly and can potentially lead to severe complications.

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