Subdural empyma due to Mycobacterium fortuitum in a non-HIV patient.

A 14-year-old male child presented with high grade intermittent fever with altered sensorium since 5-6 days and generalised seizures. On examination neck stiffness noticed with normal haemogram and chest X-ray. CSF microscopy was normal and no growth seen in aerobic culture. CT scan showed loculated lesion. Drained pus showed acid fast organism and culture on Lowestein Jensen medium showed pale-coloured growth on 3 rd day. Organism identified as Mycobacterium fortuitum by biochemical test. Interesting aspect of this case was there is no history of trauma or injection and patient was negative for HIV antibody.