Mismatch repair cancer syndrome (MMRCS) is a cancer syndrome associated with biallelic DNA mismatch repair mutations. It is also known as Turcot syndrome (after Jacques Turcot, who described the condition in 1959) and by several other names.
In MMRCS, neoplasia typically occurs in both the gut and the central nervous system (CNS). In the large intestine, familial adenomatous polyposis occurs; in the CNS, brain tumors.
Video Mismatch repair cancer syndrome
Genetics
Under the name constitutional mismatch repair-deficiency, (CMMR-D), it has been mapped to MLH1, MSH2, MSH6 or PMS2. Although these are the same genes mutated in the condition known as Lynch syndrome or hereditary nonpolyposis colorectal cancer, the mutations are biallelic in CMMR-D.
The term "childhood cancer syndrome" has also been proposed.Café-au-lait macules have been observed.
Maps Mismatch repair cancer syndrome
Diagnosis
Familial adenomatous polyposis + malignant central nervous system tumor.
Treatment
History
OMIM currently includes "Turcot syndrome" under Mismatch repair cancer syndrome. Turcot syndrome is the association between familial polyposis of the colon and brain tumors like medulloblastoma, malignant glioma. It was first reported by Canadian surgeon Jacques Turcot (1914-1977 ) et al. in 1959 and hence carries the first author's name.
See also
- Gardner syndrome is an association of hereditary intestinal polyps, osteomas (typically of the skull), papillary thyroid cancer, and desmoid tumors.
References
External links
- synd/3528 at Who Named It?
- Turcot syndrome; CNS tumors with Familial polyposis of the colon at NIH's Office of Rare Diseases
- Cancer.Net: Turcot Syndrome
Source of article : Wikipedia