Types
A neoplasm can be benign, potentially malignant (pre-cancer), or malignant (cancer).
- Benign neoplasms include uterine fibroids and melanocytic nevi (skin moles). They are circumscribed and localized and do not transform into cancer.
- Potentially malignant neoplasms include carcinoma in situ. They do not invade and destroy but, given enough time, will transform into a cancer.
- Malignant neoplasms are commonly called cancer. They invade and destroy the surrounding tissue, may form metastases and eventually kill the host.
- Secondary neoplasm refers to any of a class of cancerous tumor that is either a metastatic offshoot of a primary tumor, or an apparently unrelated tumor that increases in frequency following certain cancer treatments such as chemotherapy or radiotherapy.
Read more about this topic: Secondary Neoplasm
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—Henry Brooks Adams (1838–1918)