A<unk>  is a<unk> , tumor or lesion involving abnormal cells which are associated with an increased risk of developing into cancer. Clinically,<unk> s encompass a variety of abnormal tissues with an increased risk of developing into cancer. Some of the most common<unk> s include certain colon polyps, which can progress into colon cancer, monoclonal gammopathy of undetermined significance, which can progress into multiple myeloma or myelodysplastic syndrome. and cervical dysplasia, which can progress into cervical cancer. Bronchial premalignant lesions can progress to squamous cell carcinoma of the lung. Pathologically,<unk>  tissue can range from benign neoplasias, which are tumors which don't invade neighboring normal tissues or spread to distant organs, to dysplasia, a collection of highly abnormal cells which, in some cases, has an increased risk of progressing to anaplasia and invasive cancer which is life-threatening. Sometimes, the term "precancer" is also used for carcinoma in situ, which is a noninvasive cancer that has not grown and spread to nearby tissue, unlike the invasive stage. As with other<unk> s, not all carcinoma in situ will become an invasive disease but is at risk of.
Precancerous condition
Chronic condition
Comorbidity
Functional symptom
Disease
Cancer cluster
Pre-existing condition
Premorbidity