XX male syndrome
RARE CONGENITAL CONDITION WHERE AN INDIVIDUAL WITH A FEMALE GENOTYPE HAS PHENOTYPICALLY MALE CHARACTERISTICS THAT CAN VARY BETWEEN CASES
46,XX testicular disorders of sex development; De la Chapelle syndrome; XX men; XX male; Xx male; XX males; 46,XX sex reversal; 46 XX sex reversal; 46,XX testicular disorder of sex development
XX male syndrome, also known as de la Chapelle syndrome, is a rare congenital intersex condition in which an individual with a 46, XX karyotype (otherwise associated with females) has phenotypically male characteristics that can vary among cases. Synonyms include 46,XX testicular difference of sex development (46,XX DSD), 46,XX sex reversal, nonsyndromic 46,XX testicular DSD, and XX sex reversal.