The unnamed patient arrived at Kwong Wah Hospital in Hong Kong complaining of a swelling in his abdomen which doctors discovered was caused by a cyst on one of his ovaries reports Gawker.com

In a paper published in the Hong Kong Medical Journal, doctors explained that he had a chromosomal abnormality known as Turner Syndrome and the genetic disorder congenital adrenal hyperplasia (CAH).Basically, he has the internal organs of a woman along with the physical appearance of a man.

“The patient, by definition, is a woman who cannot get pregnant. But she also has CAH, which gave her the appearance of a man,” Chinese University pediatrics professor Ellis Hon Kam-lun told the South China Morning Post. “It’s an interesting and very rare case of having the two combinations. It probably won’t be seen again in the near future.”

According to his doctors, the patient, who is 4’5″ tall, bearded, has a micropenis and no testicles, plans to continue identifying as male.

Image via Thinkstock