NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,573 terms related to cancer and medicine.

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testicular intratubular germ cell neoplasia
(tes-TIH-kyoo-ler IN-truh-TOO-byoo-ler jerm sel NEE-oh-PLAY-zhuh)
Abnormal cells are found in the tiny tubules where the sperm cells begin to develop. These abnormal cells may become cancer and spread into nearby normal tissue. All tumor marker levels are normal. Also called stage 0 testicular carcinoma in situ and testicular intraepithelial neoplasia.