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Symptoms and Signs – Differential Diagnosis of Hypogonadism
HYPERGONADOTROPIC HYPOGONADISM
• Hormone resistance (androgen, luteinizing hormone [LH] insensitivity)
• Gonadal defects (e.g., Klinefelter’s syndrome, myotonic dystrophy)
• Drug induced (e.g., spironolactone, cytotoxins)
• Alcoholism, radiation induced
• Mumps orchitis
• Anatomic defects, castration
HYPOGONADOTROPIC HYPOGONADISM
• Pituitary lesions (neoplasms, granulomas, infarction, hemochromatosis, vasculitis)
• Drug induced (e.g., glucocorticoids)
• Hyperprolactinemia
• Genetic disorders (Laurence-Moon-Biedl syndrome, Prader-Willi
syndrome)
• Delayed puberty
• Other: chronic disease, nutritional deficiency, Kallmann’s syndrome, idiopathic isolated LH or follicle-stimulating hormone (FSH) deficiency
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