The British Journal of Psychiatry 163: 684-686 (1993)
© 1993 The Royal College of Psychiatrists
H Verdoux and M Bourgeois
University of Bordeaux, France.
A 45-year-old man was admitted with a hair growth delusion and depressive symptoms. The delusion persisted for three years and disappeared after a manic episode. This odd delusion has some similarities with lycanthropy.