부산대학교 도서관

The patient, who was diagnosed with male-to-female gender identity disorder (MTF/GID) underwent type 4 thyroplasty (TP4) performed by her previous doctor. Four years later, she concluded that she was still male and came to our hospital in order to reverse the TP4. Her speaking fundamental frequency (SFF) was not expected to change to a low pitch, and the removal surgery was planned. In the surgery, the Gore-Tex bolster and traction sutures were removed, but the thyroid cartilage and cricoid cartilage were not returned to their previous condition, and her SFF did not decrease. A TP4 becomes irreversible with the passage of a long period of time.