Match each patient's clinical presentation of secondary amenorrhea with the most likely underlying pathophysiologic mechanism.
- An elite 22-year-old gymnast presenting with months of absent menses and a current body mass index of .Decreased pulsatile secretion of gonadotropin-releasing hormone
- A 36-year-old nulliparous female seeking evaluation for missed periods over the last year, accompanied by severe night sweats and vaginal epithelial thinning.Accelerated depletion of ovarian follicles
- A 31-year-old gravida 2 para 2 reporting absent menses and new-onset cyclic lower abdominal cramping, whose last delivery was complicated by retained products of conception requiring instrumental curettage.Obliteration of the uterine cavity by synechiae
- A 25-year-old with a history of irregular menstrual cycles, worsening facial acne, and acanthosis nigricans on physical examination.Insulin resistance leading to hyperandrogenism and altered gonadotropin release
Cevap
The gymnast has functional hypothalamic amenorrhea (decreased GnRH secretion); the 36-year-old with night sweats has primary ovarian insufficiency (accelerated follicle depletion); the patient with a prior curettage has Asherman syndrome (obliteration of the uterine cavity); and the patient with acne and acanthosis nigricans has Polycystic Ovary Syndrome (insulin resistance).
Each patient's clinical history points to a distinct etiology of secondary amenorrhea: low energy availability causes central GnRH suppression; early menopausal symptoms suggest premature follicular depletion; prior uterine instrumentation risks synechiae formation; and hyperandrogenism with metabolic signs indicates PCOS.
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Anahtar Kavram
Pathophysiology and diagnosis of secondary amenorrhea