Which statement is true about true precocity or incomplete (pseudoprecocity)?

Which statement is true about true precocity or incomplete (pseudoprecocity)?

• A. True precocity occurs because of hormonal stimulation from the pituitary or hypothalamus causing gonadal maturation & fertility
• B. Pseudoprecocity does not involve development of any secondary sex characteristics
• C. Incomplete precocity is caused by adrenal or gonadal tumor or dysfunction & results in increased lineal growth but no development of secondary sex characteristics
• D. Incomplete or pseudoprecocity leads to testicular enlargement and ovulation

Answer: (A)

True precocity is about early activation of the hypothalamic–pituitary–gonadal axis (central precocious puberty). When GnRH begins to be released sooner than normal, the pituitary secretes LH and FSH, which stimulate the gonads to mature and allow fertility. This is exactly what central/true precocity entails—the hormonal cascade from the brain drives gonadal growth and reproductive capability earlier than usual. Pseudoprecocity (peripheral precocity) results from autonomous production of sex steroids outside the normal brain–pituitary control, such as from adrenal or gonadal tumors or from exogenous hormones. Because the axis isn’t activated, gonadotropin levels are typically low, and secondary sexual characteristics can appear without true activation of the HPG axis. The other statements mischaracterize peripheral precocity and incomplete forms: pseudoprecocity can involve secondary sexual characteristics, and the described scenarios for incomplete precocity don’t align with how central versus peripheral precocity typically present.

True precocity is about early activation of the hypothalamic–pituitary–gonadal axis (central precocious puberty). When GnRH begins to be released sooner than normal, the pituitary secretes LH and FSH, which stimulate the gonads to mature and allow fertility. This is exactly what central/true precocity entails—the hormonal cascade from the brain drives gonadal growth and reproductive capability earlier than usual.

Pseudoprecocity (peripheral precocity) results from autonomous production of sex steroids outside the normal brain–pituitary control, such as from adrenal or gonadal tumors or from exogenous hormones. Because the axis isn’t activated, gonadotropin levels are typically low, and secondary sexual characteristics can appear without true activation of the HPG axis.

The other statements mischaracterize peripheral precocity and incomplete forms: pseudoprecocity can involve secondary sexual characteristics, and the described scenarios for incomplete precocity don’t align with how central versus peripheral precocity typically present.