Abstract and Introduction
Background: Childhood hypopituitarism may be present at birth or may be acquired. Early diagnosis and treatment promote the best possible outcomes.
Methods: The anatomy, etiologies, clinical presentation, diagnostic testing strategies, and current treatments relevant to childhood hypopituitarism are reviewed.
Results: Children with congenital hypopituitarism may present with life-threatening hypoglycemia, abnormal serum sodium concentrations, shock, microphallus in males, and, only later, growth failure. Causes of congenital hypopituitarism include septo-optic dysplasia, other midline syndromes, and mutations of transcription factors involved in pituitary gland development. Children with acquired hypopituitarism typically present with growth failure and may have other complaints depending on the etiology and the extent of missing pituitary hormones. Acquired hypopituitarism may result from tumors (most commonly craniopharyngioma), radiation, infection, hydrocephalus, vascular anomalies, and trauma.
Conclusions: An MRI of the head is critical in determining the etiology. Testing for pituitary hormone deficiencies is undertaken along with appropriate hormonal replacement and, in some cases, direct treatment of the cause of the hypopituitarism. All children with hypopituitarism require coordination of medical care by a pediatric endocrinologist and, when older, transition to the care of an internist endocrinologist. Referrals to a reproductive endocrinologist may be required as fertility issues arise.
Hypopituitarism refers to the absence or reduction in function of two or more hormones produced by the pituitary gland. When all pituitary hormones are affected, the term panhypopituitarism should be used. In childhood cases, one must consider whether the hypopituitarism has its origin before or at birth or is acquired at any time after birth. The younger the child is at the time of presentation, the more likely the etiology is to be congenital. However, on occasion, congenital forms may present or be diagnosed well after birth and, conversely, some children with acquired forms are discovered relatively early in life. The purpose of this review is to discuss the causes of, relevant diagnostic modalities for, and treatment of hypopituitarism in childhood.
Cancer Control. 2002;9(3) © 2002 H. Lee Moffitt Cancer Center and Research Institute, Inc.
Cite this: Hypopituitarism in Childhood - Medscape - May 01, 2002.