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The most common form of colon cancer is adenocarcinoma, constituting between 95% [2] and 98% [3] of all cases of colorectal cancer. Other, rarer types include lymphoma, adenosquamous and squamous cell carcinoma. Some subtypes have been found to be more aggressive. [4]
It is standardized with the C section of ICD-10. There were no changes in the topography axis between ICD-O-2 and ICD-O-3. See List of ICD-10 codes#(C00–C97) Malignant Neoplasms for examples.
Risk of containing malignant cells Histopathology definition Tubular adenoma 2% at 1.5 cm [4] Over 75% of volume has tubular appearance. [5] Tubulovillous adenoma 20% to 25% [6] 25–75% villous [5] Villous adenoma 15% [7] to 40% [6] Over 75% villous [5] Sessile serrated adenoma (SSA) [8] Basal dilation of the crypts; Basal crypt serration
Colorectal cancer (CRC), also known as bowel cancer, colon cancer, or rectal cancer, is the development of cancer from the colon or rectum (parts of the large intestine). [5] Signs and symptoms may include blood in the stool , a change in bowel movements , weight loss, abdominal pain and fatigue. [ 9 ]
As shown by Hofstad et al., [25] when polyps are allowed to remain in the colon and are observed for three years, about 40% of polyps are seen to grow larger, likely progressing towards cancer. Luo et al. [26] summarized the substantial body of evidence that field cancerization occurs in the colon, often due to aberrant DNA methylation.
ICD-10 classifies neoplasms into four main groups: benign neoplasms, in situ neoplasms, malignant neoplasms, and neoplasms of uncertain or unknown behavior. [7] Malignant neoplasms are also simply known as cancers and are the focus of oncology .
The bacteria is usually only found in the mouth, far from the colon. In the mouth, it’s one of the most common types of disease-causing bacteria , linked to gum disease and plaque buildup.
Serrated polyposis syndrome often does not cause symptoms. The risk of colon cancer is between 25 and 40%. [8] Sessile serrated polyps, as seen during endoscopy or colonoscopy, are flat (rather than raised) and are easily overlooked. Serrated lesions range in size from small (<5 mm) to large, and often have a "mucous cap" overlying the polyp.