Mycotic aneurysm. an unusual cause of pyrexia of unknown origin in an immunodeficient infant.
Intracranial aneurysms in early childhood are rare. Mycotic aneurysms as a cause of pyrexia of unknown origin has never been reported. We present a 9-month-old immunodeficient boy who had a long history of irregular fever from neonatal period and presented to us with subarachnoid hemorrhage. Investigation revealed a basilar top aneurysm. We present the clinicoradiological profile and discuss the management strategies.