Related Experiment Videos
Isolated ACTH deficiency accompanied by 'primary hypothyroidism' and hyperprolactinaemia
Acta Endocrinologica
|December 1, 1983
Summary
This study reports a 55-year-old man with isolated adrenocorticotropic hormone (ACTH) deficiency, likely due to a pituitary lesion. Long-term glucocorticoid deficiency may explain observed hormonal imbalances.
Area of Science:
- Endocrinology
- Pituitary Disorders
- Hormone Regulation
Background:
- Adrenocorticotropic hormone (ACTH) deficiency can lead to secondary adrenal insufficiency.
- Pituitary gland lesions are a common cause of isolated ACTH deficiency.
Observation:
- A 55-year-old male presented with isolated ACTH deficiency.
- Lack of response to lysine vasopressin and corticotropin-releasing factor (CRF) suggested a pituitary lesion.
- Hormonal analysis revealed decreased thyroxine (T4), elevated basal thyroid-stimulating hormone (TSH), prolactin (Prl), luteinizing hormone (LH), and follicle-stimulating hormone (FSH).
- Exaggerated TSH and Prl responses to thyrotropin-releasing hormone (TRH), and hyperreactive LH/FSH responses to gonadotropin-releasing hormone (LRH) were noted.
Findings:
- The pituitary gland was identified as the likely site of the lesion.
- Hormonal abnormalities normalized after cortisol administration.
- Long-term glucocorticoid deficiency is implicated as the cause of these hormonal changes.
Implications:
- This case highlights the complex hormonal interactions influenced by glucocorticoid levels.
- Understanding pituitary function is crucial for diagnosing and managing endocrine disorders.
- Glucocorticoid replacement therapy may resolve secondary hormonal imbalances.