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Hypogonadotropic hypogonadism



Endocrine glands
Endocrine glands
The pituitary gland
The pituitary gland
Pituitary hormones
Pituitary hormones


Hypogonadotropic hypogonadism

Alternative Names:

Gonadotropin deficiency; Kallmann syndrome; Secondary hypogonadism
Symptoms:
  • lack of development at puberty, incomplete development or significant delay of pubertal development
  • prepubertal testicular size in adolescence
  • absence of secondary sexual development (for example, pubic, facial, and underarm hair)
  • short stature may be associated with some forms of hypogonadism
  • anosmia (inability to smell)

Signs and tests:
  • levels of various hormones in the blood
  • GnRH stimulation test (measuring hormone levels after stimulation by injected hormones)
  • MRI of the head



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