A 66-year-old man who went to the doctor in Hong Kong for swelling in his abdomen discovered he is actually a woman, according to the South China Morning Post.
Doctors realized the patient was female after they found the swelling came from a large cyst on an ovary, the Hong Kong Medical Journal reported.
The man had Turner syndrome, which causes women to lack some female features, and congenital adrenal hyperplasia, which boosted his male hormones and made him look like a man.
The man grew up an orphan. The Post said he has a beard, small penis and no testes. According to the Post, he wishes to continue identifying as male and may receive male hormone treatment.
The Hong Kong Medical Journal, which published the information mid last year, said only six cases of people with both disorders had ever been reported in medical literature.
Women considered ‘normal’ have two complete X chromosomes.
Women with Turner Syndrome, however, are missing part or all of one of those chromosomes, according to the U.S. National Library of Medicine.
As a result, adult women with Turner Syndrome don’t develop as much as other women after puberty. They might have small breasts and as in this case, they often can’t have children.
About one of every 2,000 females born have the condition, according to the library of medicine.
Congenital adrenal hyperplasia affects a person’s ability to produce hormones, including those that make us appear male or female, according to the Mayo Clinic.