Management and Outcomes of Children with Malignant Germ Cell Tumor.
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OBJECTIVES: To assess the clinico-pathological features, management and outcomes, amongst extracranial malignant germ cell tumors (MGCTs) in children treated primarily at a tertiary care center in a resource-challenged nation. METHODS: The prospectively maintained data for children below 14 y of age treated for extracranial MGCT from May 1994 to January 2023 was analyzed for patient characteristics, management, event-free survival (EFS) and overall survival (OS) and factors effecting survival. Events was defined as death, recurrence and progression. Multivariate logistic regression analysis was performed to identify the factors independently predicting unfavorable outcomes. RESULTS: One hundred and seventy-seven children (37% males) with a median (IQR) age at presentation of 30 mo (range 2-168 mo) were included. The cohort consisted of 87 (49%) extra-gonadal and 90 (51%) gonadal cases. Disease was metastatic at presentation in 48 (27%) with lungs being the most common site. Neoadjuvant chemotherapy (NACT) was given to 119 (67%) and finally 162/177 (92%) had undergone resection of the primary tumor. Endodermal sinus tumor (EST) was the commonest histological subtype in 141 children (73%). Twenty-two (12%) patients had died giving a 5-y OS of 84.7% (95% CI 78.3- 91.1). Recurrence occurred in 25 patients, and an additional 5 patients had progression giving a 5-y EFS of 69.9% (95% CI 62.5- 77.3). Stage III (p = 0.05), Stage IV (p = 0.006) and extra-gonadal site (p = 0.05) were significantly associated with poorer EFS. CONCLUSIONS: Children with MGCT have a favorable outcome with 5-y OS of 84.7% and EFS of 69.9%. Stage III and IV disease and extra-gonadal sites were independent predictors of a poor outcome.