Extremely high follicle-stimulating hormone with normal ovarian function
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The work-up for a discrepant immunoassay result is challenging. A 34-year-old woman with normal menstruation and ovarian function had high follicle-stimulating hormone (FSH) around 100-200 IU/L by Roche elecsys e602 (reference interval 3.0-14.0 IU/L). Magnetic... ...