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Transsexualism in female monozygotic twins: a case report
1Roozbeh Psychiatric Hospital, Tehran University of Medical Sciences, Iran. sadeghimajid@yahoo.com
Objective:
A case report is presented of a gender identity disorder involving a pair of female monozygotic twins who requested sex reassignment. As far as we know, this case is the first in psychiatric literature and supports a genetic aetiology of this disorder.
Clinical Picture:
The patients were two 18-year-old female monozygotic twins who had showed symptoms of transsexualism since early childhood. They had no other physical or psychiatric disorder except borderline mental functioning.
Treatment:
The patients were referred for sex reassignment.
Outcome:
They were lost to follow up after initial evaluation.
Conclusion:
In addition to other possible (yet not confirmed) causes of transsexualism, a genetic basis for this disorder is suggested by this case.