The case of a patient with dissociative identity disorder follows:

Cindy, a 24-year-old woman, was transferred to the psychiatry service to facilitate community placement. Over the years, she had received many different diagnoses, including schizophrenia, borderline personality disorder, schizoaffective disorder, and bipolar disorder. Dissociative identity disorder was her current diagnosis.

Cindy had been well until 3 years before admission, when she developed depression, "voices," multiple somatic complaints, periods of amnesia, and wrist cutting. Her family and friends considered her a pathological liar because she would do or say things that she would later deny. Chronic depression and recurrent suicidal behavior led to frequent hospitalizations. Cindy had trials of antipsychotics, antidepressants, mood stabilizers, and anxiolytics, all without benefit. Her condition continued to worsen.

Cindy was a petite, neatly groomed woman who cooperated well with the treatment team. She reported having nine distinct alters that ranged in age from 2 to 48 years; two were masculine. Cindy’s main concern was her inability to control the switches among her alters, which made her feel out of control. She reported having been sexually abused by her father as a child and described visual hallucinations of him threatening her with a knife. We were unable to confirm the history of sexual abuse but thought it likely, based on what we knew of her chaotic early home life.

Nursing staff observed several episodes in which Cindy switched to a troublesome alter. Her voice would change in inflection and tone, becoming childlike as ]oy, an 8-year-old alter, took control. Arrangements were made for individual psychotherapy and Cindy was discharged.

At a follow-up 3 years later, Cindy still had many alters but was functioning better, had fewer switches, and lived independently. She continued to see a therapist weekly and hoped to one day integrate her many alters.

Donald W. Black