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Precocious puberty, Delayed puberty - Coggle Diagram
Precocious puberty
Central (gonadotropin dependent, true)
Idiopathic (constitutional) (80% of cases and almost all in females)
CNS pathology
Tumor (mostly hamartomas)
Cysts
Hydrocephalus
Inflammation (e.g. meningitis)
Irradiation
Trauma
Hypothyroidism (if untreated and longstanding)
Peripheral (gonadotropin-independent, precocious pseudopuberty)
Males
Isosexual
Testicular tumors (e.g. Leydig cell tumor)
Adrenocortical tumors
Congenital adrenal hyperplasia
Exogenous androgens
Heterosexual
Exogenous estrogen
Feminizing adrenocortical tumors
Females
Isosexual
Ovarian tumor
Exogenous estrogen (e.g. contraceptives)
McCune-Albright syndrome
Feminizing adrenocortical tumors
Heterosexual
Adrenocortical tumors
Congenital adrenal hyperplasia
Exogenous androgens
Delayed puberty
Hypogonadotropic hypogonadism
Permanent
Panhypopituitarism
Kallmann syndrome
Destructive CNS pathology (e.g. tumor, infiltration, infection, irradiation, trauma)
Functional
Idiopathic (constitutional) (90% of cases and mostly in males)
Hypothyroidism
Excessive exercise (athletic amenorrhea), anorexia nervosa, stress
Chronic diseases
Nonhypogonadotropic hypogonadism
Male
Klinefelter syndrome
Anorchia
Testicular damage (e.g. chemotherapy, irradiation, iatrogenic, trauma, inflammation, etc.)
Female
Turner syndrome
Galactosemia
Ovarian damage (e.g. chemotherapy, irradiation, iatrogenic, trauma, inflammation, etc.)