Erotomania revisited: thirty-four years later.

Erotomania (also known as De Clerambault's syndrome) is usually described as a rare delusional syndrome that characteristically involves a woman who believes that a man, typically of higher social, economic or political status, is in love with her. Two cases are reviewed here that have been followed for over 30 years, making these some of the longest, single-case longitudinal studies yet reported. De Clerambault's syndrome remains a ubiquitous nosological psychiatric entity with uncertain prognosis.