Germ-cell tumor | |
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Micrograph of a seminoma, a common germ cell tumor. | |
Specialty | Oncology |
Germ cell tumor (GCT) is a neoplasm derived from the primordial germ cells.[1] Germ-cell tumors can be cancerous or benign. Germ cells normally occur inside the gonads (ovary[2] and testis). GCTs that originate outside the gonads may be birth defects resulting from errors during development of the embryo.