Autism, profound mental retardation and atypical bipolar disorder in a 33‐year‐old female with a deletion of 15q12

A case report of a 33-year-old woman with atypical bipolar disorder, autistic disorder, profound mental retardation and a chromosomal anomaly is presented. This patient is behaviourally similar to a patient reported by Akuffo et al. (1986), who apparently did not have a chromosomal investigation. The chromosomal anomaly and similarities between the two patients are discussed.