Mastoid subperiosteal abscess with osteolytic intracranial extension: a rare complication of mastoiditis in a young patient

Acute mastoiditis complicated with subperiosteal abscess is a rare clinical entity in adult population. It is however a recognized risk in diabetes patient. We report a case of a young lady who was newly diagnosed as diabetes at presentation, presented with features of mastoiditis with subperiosteal abscess and adjacent intracranial abscess extension