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Familial acromegaly.

R G Pestell1, F P Alford, J D Best

  • 1Department of Endocrinology, St. Vincents Hospital Fitzroy, Victoria, Australia.

Acta Endocrinologica
|August 1, 1989
PubMed
Summary
This summary is machine-generated.

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This study identified a rare inherited pituitary syndrome in a family across three generations. The syndrome causes functional pituitary adenomas, leading to conditions like acromegaly and galactorrhea.

Area of Science:

  • Endocrinology
  • Genetics
  • Oncology

Background:

  • Pituitary adenomas are tumors of the pituitary gland, often causing hormonal imbalances.
  • Functional pituitary adenomas secrete hormones, leading to conditions such as acromegaly and hyperprolactinemia.
  • Familial inheritance of pituitary adenomas is rare, with Multiple Endocrine Neoplasia (MEN) type 1 being the most common associated syndrome.

Observation:

  • Five family members across three generations were diagnosed with isolated functional pituitary adenomas.
  • Four individuals presented with acromegaly due to growth hormone excess.
  • One individual experienced galactorrhea caused by prolactin excess.

Findings:

  • Tumor histology in affected members revealed atypical mixed cell or undifferentiated cell types.

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  • The affected family members exhibited a distinct pattern of pituitary adenoma development.
  • Genetic analysis suggested a novel inherited pituitary syndrome, separate from MEN type 1.

    • Implications:

    • This family represents a unique inherited pituitary syndrome, expanding our understanding of pituitary tumor genetics.
    • The findings suggest the need for genetic screening in families with a history of pituitary adenomas, especially those with atypical features.
    • Further research into the specific genetic mutations underlying this syndrome could lead to targeted therapies for pituitary adenomas.