occur withnormal XX and XY karyotypes and a variety of abnormal kar-yotypes, most commonly 45, X (Turner syndrome), in whichoocyte loss is accelerated Add after 18 weeks in utero(29,30). Turner syndrome is often diagnosed in early child-hood because of the well-known phenotypic characteristics(short stature, webbed neck, and low hairline), and therefore,many patients do not present for assessment . Philadelphia: WB Saunders; 1996.28.Manuel M, Katayama PK, Jones HW Jr. The age of occurrence of gonadaltumors in intersex patients with a Y chromosome. Am J Obstet Gynecol1976;124:293â300.29.Turner HH. A syndrome of infantilism, congenital webbed neck, and cubitusvalgus. Endocrinology 1938;23:566â74.30.Turnerâs syndrome. West J Med 1982;137:32â44.31.Toledo SP, Brunner HG, Kraaij R, Post M, Dahia PL