Ruptured intracranial dermoid cyst presenting with neuropsychiatric symptoms: a case report.

Psychiatric symptoms associated with frontal lobe unruptured or ruptured intracranial dermoid cysts are rarely described in the medical literature. The case of a 58-year-old man with a chronic history of anxiety, major depression, and obsessive compulsive disorder who presented with new onset auditory and visual phenomena is described. This case illustrates the need to include an underlying brain tumor in the differential diagnosis when encountering new onset auditory and visual phenomena in patients with chronic mood and/or anxiety disorders.