A 10-year retrospective single-center study of alpha-fetoprotein and beta-human chorionic gonadotropin in Romanian children with (para) gonadal tumors and cysts

JOURNAL OF PEDIATRIC ENDOCRINOLOGY & METABOLISM(2022)

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摘要
Objectives: Malignant tumor is a top-ranking cause of pediatric (>1-year) mortality in America and Europe. Among pediatric tumors, germ cell tumors (GCT) and gonadal tumors rank fourth (6%) by the Surveillance, Epidemiology, and End Results (SEER) program (seer.cancer.gov ). Continuous research on tumor markers harnesses their full potential in tumor detection and management. We evaluated the effectiveness of beta-human chorionic gonadotropin (beta-hCG) and Alpha-fetoprotein (AFP) in Romanian children with (para)gonadal tumors and cysts, determining their accuracy in detecting malignancy, tumor-type, stage, complications, prognosis, and treatment response. Methods: A 10-year retrospective study of AFP and beta-hCG in 134 children with cysts and (para)gonadal tumors aged one month to 17 years was performed. Results: AFP/beta-hCG was unelevated in patients with cysts and nonmalignant tumors. Forty-eight/86 patients (43 GCT and 5 non-GCT) with malignant tumors had elevated AFP/beta-hCG, 3/48 patients had recurrences, and 25/48 had mixed-GCT (68% had elevated AFP + beta-hCG). All 30 patients with Yolk sac tumors (YST) or their components had elevated AFP. Area under the curve, sensitivity and specificity for GCT were: AFP + beta-hCG- 0.828, 67.2%, 100%; AFP- 0.813, 64.1%, 100%; and beta-hCG- 0.664, 32.8%, 100%. Two patients whose AFP/beta-hCG levels remained elevated died. Common mixed-GCT components were YST-80% and embryonal carcinoma-72%. Thirty of 34 metastasis cases were GCT, with 26/34 patients having elevated AFP/beta-hCG. Conclusions: AFP/beta-hCG detects malignant GCT and can determine tumor-type. GCT patients with markedly elevated AFP + beta-hCG had poor prognosis, especially if recurrence or metastasis was present. Recurrence is unrelated to elevated AFP/beta-hCG. The tumor components and quantity present determine AFP/beta-hCG values in mixed-GCT.
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关键词
alpha-fetoprotein, beta-human chorionic gonadotropin, children, germ cell tumor, ovarian tumor, testicular tumor
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