NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,848 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

spindle cell tumor
(SPIN-dul sel TOO-mer)
A type of tumor that contains cells called spindle cells, based on their shape. Under a microscope, spindle cells look long and slender. Spindle cell tumors may be sarcomas or carcinomas.