PMID: 3319599Sep 1, 1987Paper

Acromegaly

Endocrinology and Metabolism Clinics of North America
G Baumann

Abstract

Acromegaly is caused by GH-secreting pituitary adenomas and, in rare cases, by ectopic production of GRH with resultant hypersecretion of GH. Important systemic manifestations include acral enlargement, swelling, disfigurement, glucose intolerance and diabetes, hypertension, nerve entrapment, arthropathy, and cardiac disease. Tumor-related major manifestations are visual impairment, oculomotor paralysis, and hypopituitarism. Morbidity is substantial, and mortality is increased. Diagnosis should be made as early as possible by measuring plasma GH after an oral glucose load and plasma somatomedin C levels. Assessment of a pituitary lesion is best made by CT scanning in the coronal plane. Therapy is mandatory and consists of surgical removal of the pituitary adenoma (usually by the transsphenoidal route) or of the ectopic source of GRH (carcinoids or islet cell tumors). Adjunctive radiation and/or drug therapy is often necessary if complete surgical ablation of the adenoma is not possible. Radiation therapy can be administered as conventional supervoltage x-ray treatment or in the form of heavy particle beams. Drugs effective in partially lowering GH levels are bromocriptine and (not yet released) somatostatin analogues. Long-term...Continue Reading

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