GONADOTROPIN DEFICIENCY IN WOMEN Part of “CHAPTER 17 – HYPOPITUITARISM“ Disrupted menstrual function, a very early manifestation of gonadotropin deficiency, often prompts premenopausal women to seek medical attention earlier in…
GONADOTROPIN DEFICIENCY IN MEN Part of “CHAPTER 17 – HYPOPITUITARISM“ Most manifestations of decreased gonadotropin secretion in men are attributable to the resultant low testosterone levels. However, testosterone is converted…
THYROID-STIMULATING HORMONE DEFICIENCY Part of “CHAPTER 17 – HYPOPITUITARISM“ Symptoms and signs of secondary hypothyroidism are similar to those seen with primary hypothyroidism, although they often are milder. The essential…
ADRENOCORTICOTROPIN DEFICIENCY Part of “CHAPTER 17 – HYPOPITUITARISM“ The HPA axis is the most crucial and may be the most challenging pituitary axis to evaluate, because symptoms and signs of…
PATHOGENESIS OF HYPOPITUITARISM Part of “CHAPTER 17 – HYPOPITUITARISM“ Table 17-1 lists many of the causes of hypopituitarism. There are no reliable statistics for the percentage of patients in each…
HYPOPITUITARISM Joseph J. Pinzone The pituitary gland comprises anterior and posterior divisions. The anterior pituitary gland secretes adrenocorticotropic hormone (ACTH), thyroid-stimulating hormone (TSH), follicle-stimulating hormone (FSH), luteinizing hormone (LH), growth…
GONADOTROPE ADENOMAS OF THE PITUITARY Part of “CHAPTER 16 – PITUITARY GONADOTROPINS AND THEIR DISORDERS“ Many pituitary adenomas, previously classified as nonfunctional, produce gonadotropins or their subunits.79 Indeed, as many…
GONADAL EFFECTS OF GONADOTROPINS Part of “CHAPTER 16 – PITUITARY GONADOTROPINS AND THEIR DISORDERS“ The only known bioeffects of LH and FSH are in the gonads. LH and FSH stimulate…
LUTEINIZING HORMONE AND FOLLICLE-STIMULATING HORMONE IN PERIPHERAL BLOOD Part of “CHAPTER 16 – PITUITARY GONADOTROPINS AND THEIR DISORDERS“ LH and FSH circulate in blood predominantly in the monomeric form found…
