Turner Syndrome

Alternate Name: Gonadal Dysgenesis

Test:

Chromosome count (45X [X0), or other mosaics), U.FSN (H), U.17-ketosteroids (L)

Sign:

Webbing of neck, infantile sexual characteristids,cardiac anomalies

Dd:

Noonan's syn., delayed menarche, anorexianervosa, genital tract abnormalities, hypopituita­rism, adrenal or thyroid disease

Phys:

Delayed menarche usual presenting symptom. Congenital primary hypogonadism due to lack Ofsecond X chromosome