title: Treatment of persistent pubertal gynecomastia with dihydrotestosterone heptanoate.
abstract: Four boys with persistent pubertal gynecomastia were given intramuscular dihydrotestosterone heptanoate (DHT-hp) at 2 to 4-week intervals for 16 weeks. By the end of treatment, breast size in all four boys had decreased 67% to 78%. Initial plasma levels of gonadotropins, estradiol, testosterone, and dihydrotestosterone (DHT) were normal. Mean plasma DHT concentration rose with the injections of DHT-hp, and remained elevated throughout the treatment period. Estradiol, LH, FSH, and testosterone decreased during treatment, as did 24-hour urinary LH and FSH. No regrowth of breast tissue was observed 6 to 15 months after treatment, although hormone concentrations had returned to near pretreatment values by 2 months after the last injection. DHT-hp has potential to be an effective medical therapy for persistent pubertal gynecomastia.
mesh_terms: D000293:Adolescent; D013196:Dihydrotestosterone / Q000031:analogs & derivatives* / Q000097:blood / Q000627:therapeutic use; D004958:Estradiol / Q000097:blood; D005640:Follicle Stimulating Hormone / Q000097:blood; D006177:Gynecomastia / Q000097:blood / Q000188:drug therapy*; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D011627:Puberty; D013739:Testosterone / Q000097:blood
chemical_list: D013196:Dihydrotestosterone; C049564:dihydrotestosterone heptanoate; D013739:Testosterone; D004958:Estradiol; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone