label: Malignant Mediastinal Germ Cell Tumor with Associated Hematologic Malignancy
label_lc: malignant mediastinal germ cell tumor with associated hematologic malignancy
description: "An extragonadal non-seminomatous malignant germ cell tumor that arises from the mediastinum and is associated with a hematologic malignancy.  The hematologic malignancies are clonally related to the malignant germ cell tumor and include acute leukemias, myelodysplastic syndromes, myeloproliferative neoplasms, and mastocytosis."