Рет қаралды 7,762
Causes:
Primary hypogonadism
Klinefelter syndrome
Secondary hypogonadism
Constitutional, chronic illness, malnutrition
Hypothyroidism, hyperprolactinemia
Kallmann syndrome
Craniopharyngioma
Signs / symptoms:
Absent testicular enlargement by age 14
Delayed growth spurt
Initial workup:
FSH, LH, testosterone, TSH, prolactin
Bone age radiograph