Gestational Choriocarcinoma With Residual Lung Tumor After Completing Treatment: A Case Report

Introduction: Choriocarcinoma (CCA) is a malignant pregnancy-related tumor that originates from cytotrophoblast and syncytiotrophoblast cells without villi. CCA is the most metastatic form among gestational trophoblastic neoplasia and the diagnosis is often in advanted stage.Patient concerns: In this report, we present a rare case of CCA with lung metastasis after term pregnancy in a 41-year-old woman at 45 days after the birth of a healthy baby and discuss management of residual metastasis after completing treatment.Diagnosis: The diagnosis of CCA can be based on the following criteria: a human chorionic gonadotropin (hCG) plateau for at least 4 values over 3 weeks, an hCG increase of 10% or greater for at least 3 values over 2 weeks, hCG persistence for 6 months or more after molar pregnancy evacuation, histopathologic diagnosis of choriocarcinoma and presence of metastatic disease.Intervention and outcomes: High risk patients must be treated with multiagent chemotherapy (EMA-CO schedule). The complete remission rates ranges from 69% to 86%.Conclusion: Residual lesions after chemotherapy are often the result of necrosis or fibrosis. In our clinical practice will avoid the risks deriving from excessive anticancer treatment in these patients, while favoring a strict follow-up strategy to monitor disease behavior in time.