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[Dwarfism due to familial panhypopituitarism].
Boletin Medico Del Hospital Infantil De Mexico
|November 1, 1977
Summary
This study describes three sisters with familial panhypopituitarism, a condition causing growth hormone and gonadotropin deficiencies. The findings suggest a potential primary defect within the pituitary gland, possibly with progressive evolution.
Area of Science:
- Endocrinology
- Genetics
- Pediatrics
Background:
- Familial panhypopituitarism is a rare endocrine disorder characterized by deficiencies in multiple pituitary hormones.
- Genetic factors are implicated in its etiology, with autosomal recessive inheritance being the most common pattern.
Observation:
- Three sisters presented with proportionate dwarfism, high-pitched voice, and lack of sexual development.
- All patients exhibited low serum levels of growth hormone (GH), luteinizing hormone (LH), and follicle-stimulating hormone (FSH).
- Further testing revealed diminished pituitary reserves for thyroid-stimulating hormone (TSH) and adrenocorticotropic hormone (ACTH) in varying degrees among the sisters.
Findings:
- Hypoglycemia and arginine infusion failed to stimulate GH secretion, and LH-FSH releasing hormone (LH-RH) did not elicit a gonadotropin response.
- The oldest sister developed hypothyroidism with low TSH unresponsive to TRH stimulation.
- Functional tests indicated a low pituitary ACTH reserve, suggesting impaired adrenal hormone production.
Implications:
- The clinical and laboratory findings are consistent with familial panhypopituitarism, with a normal sella turcica.
- The genetic transmission pattern suggests autosomal recessive inheritance, with consanguinity being a possibility.
- The results point towards a potential primary defect at the pituitary level, possibly with a progressive disease course.