Following a routine immunisation a 9 month old child developed vomiting and drowsiness. On examination there was bulging of anterior fontanelle. Fundoscopy revealed papilledema. The child developed cranial nerve palsies within a few hours. Inspite of all these findings the child was afebrile with clear chest. What is the MOST probable diagnosis?
Meningitis Sagittal sinus thrombosis Vit A toxicity Astrocytoma