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Serum Gastrin and Human Chorionic Gonadotropin in the Zollinger-Ellison Syndrome

Bruce E. Stabile, MD; Glenn D. Braunstein, MD; Edward Passaro Jr, MD
Arch Surg. 1980;115(9):1090-1095. doi:10.1001/archsurg.1980.01380090058014.
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• Prior to total gastrectomy, serum levels of gastrin and human chorionic gonadotropin (HCG) and its alpha- and beta-subunits (α-HCG and β-HCG) were determined by radioimmunoassays in 40 patients with the Zollinger-Ellison syndrome. Basal serum gastrin levels greater than 1,500 pg/mL were found only in patients with metastases to lymph nodes or liver, while levels greater than 8,000 indicated massive liver replacement by tumor. Gastrin levels less than 1,500 pg/mL had no correlation with malignant behavior. Neither the calcium-infusion nor secretin-injection test was useful in identifying tumors as benign or malignant. Basal serum levels of α-HCG were elevated (> 7 ng/mL) in four of 20 patients with metastatic gastrinoma and were normal in all 16 patients with benign disease. There was a significant correlation between basal gastrin and α-HCG levels in patients with malignant gastrinoma but not for those with benign tumors. The results suggest that serum gastrin and α-HCG levels can be useful in assessing the biologic behavior of gastrinomas and in planning appropriate surgical and nonsurgical treatment.

(Arch Surg 115:1090-1095, 1980)


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