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Results: 1 to 20 of 31

1.

Colorectal Cancer

The colon and rectum are part of the large intestine. Colorectal cancer occurs when tumors form in the lining of the large intestine. It is common in both men and women. The risk of developing colorectal cancer rises after age 50. You're also more likely to get it if you have colorectal polyps, a family history of colorectal cancer, ulcerative colitis or Crohn's disease, eat a diet high in fat, or smoke. Symptoms of colorectal cancer include: -Diarrhea or constipation. -A feeling that your bowel does not empty completely. -Blood (either bright red or very dark) in your stool. -Stools that are narrower than usual. -Frequent gas pains or cramps, or feeling full or bloated. -Weight loss with no known reason. -Fatigue. -Nausea or vomiting. Because you may not have symptoms at first, it's important to have screening tests. Everyone over 50 should get screened. Tests include colonoscopy and tests for blood in the stool. Treatments for colorectal cancer include surgery, chemotherapy, radiation, or a combination. Surgery can usually cure it when it is found early. NIH: National Cancer Institute.  [from MedlinePlus]

MedGen UID:
287122
Concept ID:
C1527249
Neoplastic Process
2.

Microsatellite Instability

A change that occurs in the DNA of certain cells (such as tumor cells) in which the number of repeats of microsatellites (short, repeated sequences of DNA) is different than the number of repeats that was in the DNA when it was inherited. The cause of microsatellite instability may be a defect in the ability to repair mistakes made when DNA is copied in the cell. [from NCI]

MedGen UID:
182529
Concept ID:
C0920269
Pathologic Function
3.

Colorectal cancer

MedGen UID:
808161
Concept ID:
CN221574
Disease or Syndrome
4.

Instability

MedGen UID:
731956
Concept ID:
C1444783
Finding
5.

Familial colorectal cancer

Colorectal cancer is a heterogeneous disease that is common in both men and women. In addition to lifestyle and environmental risk factors, gene defects can contribute to an inherited predisposition to CRC. CRC is caused by changes in different molecular pathogenic pathways, such as chromosomal instability, CpG island methylator phenotype, and microsatellite instability. Chromosome instability is the most common alteration and is present in almost 85% of all cases (review by Schweiger et al., 2013). Genetic Heterogeneity of Colorectal Cancer Mutations in a single gene result in a marked predisposition to colorectal cancer in 2 distinct syndromes: familial adenomatous polyposis (FAP; 175100) and hereditary nonpolyposis colorectal cancer (HNPCC; see 120435). FAP is caused by mutations in the APC gene (611731), whereas HNPCC is caused by mutations in several genes, including MSH2 (609309), MLH1 (120436), PMS1 (600258), PMS2 (600259), MSH6 (600678), TGFBR2 (190182), and MLH3 (604395). Epigenetic silencing of MSH2 results in a form of HNPCC (see HNPCC8, 613244). Other colorectal cancer syndromes include autosomal recessive adenomatous polyposis (608456), which is caused by mutations in the MUTYH gene (604933), and oligodontia-colorectal cancer syndrome (608615), which is caused by mutations in the AXIN2 gene (604025). The CHEK2 gene (604373) has been implicated in susceptibility to colorectal cancer in Finnish patients. A germline mutation in the PLA2G2A gene (172411) was identified in a patient with colorectal cancer. Germline susceptibility loci for colorectal cancer have also been identified. CRCS1 (608812) is conferred by mutation in the GALNT12 gene (610290) on chromosome 9q22; CRCS2 (611469) maps to chromosome 8q24; CRCS3 (612229) is conferred by variation in the SMAD7 gene (602932) on chromosome 18; CRCS4 (601228) is conferred by variation on 15q that causes increased and ectopic expression of the GREM1 gene (603054); CRCS5 (612230) maps to chromosome 10p14; CRCS6 (612231) maps to chromosome 8q23; CRCS7 (612232) maps to chromosome 11q23; CRCS8 (612589) maps to chromosome 14q22; CRCS9 (612590) maps to 16q22; CRCS10 (612591) is conferred by mutation in the POLD1 gene (174761) on chromosome 19q13; CRCS11 (612592) maps to chromosome 20p12; and CRCS12 (615083) is conferred by mutation in the POLE gene (174762) on chromosome 12q24. Somatic mutations in many different genes, including KRAS (190070), PIK3CA (171834), BRAF (164757), CTNNB1 (116806), FGFR3 (134934), AXIN2 (604025), AKT1 (164730), MCC (159350), MYH11 (160745), and PARK2 (602544) have been identified in colorectal cancer. [from OMIM]

MedGen UID:
430218
Concept ID:
CN029768
Disease or Syndrome
6.

Carcinoma of colon

Cancer that forms in the tissues of the colon (the longest part of the large intestine). Most colon cancers are adenocarcinomas (cancers that begin in cells that make and release mucus and other fluids). [from NCI]

MedGen UID:
147065
Concept ID:
C0699790
Neoplastic Process
7.

Colorectal Carcinoma

Cancer that develops in the colon (the longest part of the large intestine) and/or the rectum (the last several inches of the large intestine before the anus). [from NCI]

MedGen UID:
3170
Concept ID:
C0009402
Neoplastic Process
8.

Syndrome

A set of symptoms or conditions that occur together and suggest the presence of a certain disease or an increased chance of developing the disease. [from NCI]

MedGen UID:
11688
Concept ID:
C0039082
Disease or Syndrome
9.

Diagnosis

The process of identifying a disease, such as cancer, from its signs and symptoms. [from NCI]

MedGen UID:
8354
Concept ID:
C0011900
Finding
10.

Independent

MedGen UID:
721426
Concept ID:
C1299583
Finding
11.

Lynch syndrome II

Lynch syndrome, caused by a germline mutation (i.e. pathogenic variant in the germline) in a mismatch repair gene and associated with tumors exhibiting microsatellite instability (MSI), is characterized by an increased risk for colon cancer and cancers of the endometrium, ovary, stomach, small intestine, hepatobiliary tract, urinary tract, brain, and skin. In individuals with Lynch syndrome the following life time risks for cancer are seen: 52%-82% for colorectal cancer (mean age at diagnosis 44-61 years); 25%-60% for endometrial cancer in women (mean age at diagnosis 48-62 years); 6% to 13% for gastric cancer (mean age at diagnosis 56 years); and 4%-12% for ovarian cancer (mean age at diagnosis 42.5 years; approximately 30% are diagnosed before age 40 years). The risk for other Lynch syndrome-related cancers is lower, though substantially increased over general population rates. [from GeneReviews]

MedGen UID:
232603
Concept ID:
C1333991
Neoplastic Process
12.

Lynch syndrome

Autosomal dominant disease caused by a germline mutation in a DNA mismatch repair (MMR) gene and manifest by hereditary malignancy. [from SNOMEDCT_US]

MedGen UID:
232602
Concept ID:
C1333990
Neoplastic Process
13.

Disease regression

Return to a former state; a subsidence of the symptoms of a disease process; in cancer, a decrease in the size of a tumor or in the extent of cancer in the body. [from NCI]

MedGen UID:
195771
Concept ID:
C0684320
Pathologic Function
14.

Proximal

Situated nearest to a point of reference. [from NCI]

MedGen UID:
64374
Concept ID:
C0205107
15.

Lynch syndrome

Lynch syndrome, caused by a germline mutation (i.e. pathogenic variant in the germline) in a mismatch repair gene and associated with tumors exhibiting microsatellite instability (MSI), is characterized by an increased risk for colon cancer and cancers of the endometrium, ovary, stomach, small intestine, hepatobiliary tract, urinary tract, brain, and skin. In individuals with Lynch syndrome the following life time risks for cancer are seen: 52%-82% for colorectal cancer (mean age at diagnosis 44-61 years); 25%-60% for endometrial cancer in women (mean age at diagnosis 48-62 years); 6% to 13% for gastric cancer (mean age at diagnosis 56 years); and 4%-12% for ovarian cancer (mean age at diagnosis 42.5 years; approximately 30% are diagnosed before age 40 years). The risk for other Lynch syndrome-related cancers is lower, though substantially increased over general population rates. [from GeneReviews]

MedGen UID:
40399
Concept ID:
C0009405
Neoplastic Process
16.

DNA Repair-Deficiency Disorders

Disorders resulting from defective DNA REPAIR processes or the associated cellular responses to DNA DAMAGE. [from MeSH]

MedGen UID:
327583
Concept ID:
C1563696
Disease or Syndrome
17.

Genomic Instability

An increased tendency of the GENOME to acquire MUTATIONS when various processes involved in maintaining and replicating the genome are dysfunctional. [from MeSH]

MedGen UID:
182518
Concept ID:
C0919532
Cell or Molecular Dysfunction
18.

Genetic Diseases, Inborn

Diseases that are caused by genetic mutations present during embryo or fetal development, although they may be observed later in life. The mutations may be inherited from a parent's genome or they may be acquired in utero. [from MeSH]

MedGen UID:
181981
Concept ID:
C0950123
Disease or Syndrome
19.

Nutritional and Metabolic Diseases

A collective term for nutritional disorders resulting from poor absorption or nutritional imbalance, and metabolic disorders resulting from defects in biosynthesis (ANABOLISM) or breakdown (CATABOLISM) of endogenous substances. [from MeSH]

MedGen UID:
45164
Concept ID:
C0028715
Disease or Syndrome
20.

Metabolic disease

Metabolism is the process your body uses to get or make energy from the food you eat. Food is made up of proteins, carbohydrates, and fats. Chemicals in your digestive system break the food parts down into sugars and acids, your body's fuel. Your body can use this fuel right away, or it can store the energy in your body tissues, such as your liver, muscles, and body fat. A metabolic disorder occurs when abnormal chemical reactions in your body disrupt this process. When this happens, you might have too much of some substances or too little of other ones that you need to stay healthy. . You can develop a metabolic disorder when some organs, such as your liver or pancreas, become diseased or do not function normally. Diabetes is an example. .  [from MedlinePlus]

MedGen UID:
44376
Concept ID:
C0025517
Disease or Syndrome

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