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  • Title: [Gastrointestinal tract polyps in acromegaly patients].
    Author: Krzentowska A, Gołkowski F, Bałdys-Waligórska A, Hubalewska-Dydejczyk A.
    Journal: Przegl Lek; 2010; 67(12):1266-9. PubMed ID: 21591351.
    Abstract:
    Acromegaly is a rare, chronic disease due to hypersecretion of growth hormone (GH) by pituitary adenoma arising from somatotrophs. The course of the disease is related to long-term organ and systemic complications and malignancies. Colon polyps seem to constitute the most frequent tumours in acromegaly apart from thyroid nodules. The aim of this study was to evaluate the prevalence of colon polyps in patients with acromegaly. Thirty one acromegaly patients, 22 females and 9 males (mean age 46.3 +/- 11.9 yrs), were enrolled to the study. Colonoscopy with histopathological assessment of specimens taken during examination was carried out in all patients. Colon polyps were found in 13 patients (41.9%) i.e. 8 females and 5 males. In two patients multiple polyps were discovered (2 and 3 respectively). Polyps were histopatologically verified as tubular adenoma with low-grade dysplasia (10 patients, 76.9%) and hyperplastic polyps (3 patients, 23.1%). The prevalence of colon polyps was significantly related to the duration of uncontrolled acromegaly (p < 0.01). Median duration of uncontrolled acromegaly in patients with and without colon polyps were 10.0 (IQR = 2.0) yrs and 6.5 (IQR = 5.0) yrs, respectively. IGF-1, GH basic and in 120 min of OGTT serum concentrations on diagnosis were not significantly related to the prevalence of colon polyps. Our study indicates that duration of uncontrolled acromegaly, contrary to IGF-1, GH basic and in OGTT serum concentrations at diagnosis are essential for the colon polyps development. Colonoscopy is considered to be routine in patients with acromegaly.
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