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Table 28-16

Manifestations of Turner syndrome.

Affected SystemsSymptom, Sign, or Condition
Head and neck features

High-arched palate (35%)

Low posterior hairline (40%)

Micrognathia (60%)

Pterygium colli (webbed neck 40%)

Eye abnormalities

Cataracts, corneal opacities

Epicanthal folds (20%)

Strabismus (15%)

Ptosis (10%)

Ear abnormalities

Conductive hearing loss (30%) and recurrent otitis media (60%)

Low-set and posteriorly rotated ears

Cardiovascular anomalies

Aortic dilation or aneurysm (25% with bicuspid aortic valve)

Bicuspid aortic valve (30%) with aortic stenosis or regurgitation

Coarctation (14%) and cystic medial necrosis of aorta

Hypertension (50%, idiopathic or due to coarctation or kidney disease)

Partial anomalous pulmonary venous return (18%)

GI disorders

Achlorhydria

Celiac disease (8%)

Colon carcinoma

Hepatic transaminases, elevated (65%)

IBD (3%)

Telangiectasias with bleeding

Kidney abnormalities (60%)Horseshoe kidney (10%), duplication or abnormal positioning of renal pelvis or ureters (15%)
Gonadal abnormalitiesGonadal dysgenesis (primary amenorrhea 80%) or early ovarian failure (20%)
Skeletal and extremity abnormalities

Short stature (98%)

Broad (shield) chest (30%) with wide-spaced hypoplastic nipples

Cubitus valgus of arms (50%) and knock knees (35%)

Lymphedema of hands and feet (30%)

Madelung wrist deformity (5%)

Osteopenia (65%)

Scoliosis (10%)

Short fourth metacarpals (40%)

CNS disorders

Emotional immaturity (40%)

Learning disabilities and ADHD (40%)

Sensorineural hearing loss

Skin and nail disorders

Hyperconvex nails

Keloid formation

Pigmented nevi

Associated conditions

Autoimmune (Hashimoto) thyroiditis (37%)

Diabetes mellitus (10%) or glucose intolerance (35%)

Dyslipidemia

Hyperuricemia

Neuroblastoma (1%)

Obesity

Rheumatoid arthritis

ADHD, attention-deficit/hyperactivity disorder.