Abstract
A pediatric case was seen in accident and emergency and was suspected to have meningitis because of severe headache, high fever, vomiting with mucoid nasal discharges following an attack of cough and cold. A CT scan of brain revealed small Frontal Pneumocephalus with right sided Pansinusitis. A FESS procedure was carried out, but the condition continued worsening on and a repeat CT scan showed that though the sinus pathology has resolved but the PNC had increased in size along with development of a Subdural Empyema which had to be drained (craniotomy) by a Neurosurgeon. It emphasizes that even a small Pneumocephalus with sinusitis is its Intracranial complication and even after FESS intervention it may progress to a Subdural empyema.