Germ cell tumor

Germ-cell tumor
Micrograph of a seminoma, a common germ cell tumor.
SpecialtyOncology

A germ cell tumor (GCT) is a neoplasm derived from primordial germ cells. Germ-cell tumors can be cancerous or benign. Germ cell tumors typically originate from the gonads (ovary and testis), but can arise in other areas of the body. Extragonadal GCTs are thought to result from abnormal migration of germ cell precursors during development of the embryo.

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