Nagoya City University Hospital

Microsatellite Instability‐High Somatic‐Type Malignancy Arising From a Primary Retroperitoneal Germ Cell Tumor: A Case Report

ABSTRACT Introduction Immune checkpoint inhibitors have shown only limited clinical efficacy in germ cell tumors (GCTs), underscoring the need for predictive biomarkers such as microsatellite instability‐high (MSI‐high). We report a rare case of mixed‐type GCTs treated with chemo...