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Turcot syndrome (glioma polyposis). Case report
Journal of Neurosurgery
|November 1, 1985
Summary
Turcot syndrome, a rare genetic condition, links brain tumors and colon polyps. This case highlights a nonfamilial presentation of Turcot syndrome with glioma and adenomatous colonic polyposis in a young woman.
Area of Science:
- Neuro-oncology
- Gastroenterology
- Clinical Genetics
Background:
- Turcot syndrome is a rare inherited cancer predisposition syndrome.
- It is characterized by the co-occurrence of brain tumors (typically gliomas) and colorectal polyps (adenomas).
- This condition is often associated with germline mutations in DNA mismatch repair genes (e.g., MLH1, MSH2) or the APC gene.
Observation:
- A case study of a 22-year-old woman with Turcot syndrome is presented.
- The patient presented initially with a frontoparietal glioma.
- Subsequent investigations revealed segmental colonic polyposis with adenocarcinomatous changes.
Findings:
- The patient's colonic polyposis was found to be nonfamilial, suggesting a potential de novo mutation or an atypical presentation.
- This case expands the clinical spectrum of Turcot syndrome presentations.
- The co-occurrence of glioma and colonic adenocarcinomas underscores the importance of thorough screening in affected individuals.
Implications:
- Early diagnosis and management of Turcot syndrome are crucial for improving patient outcomes.
- This case emphasizes the need for vigilance in identifying nonfamilial cases and understanding their genetic underpinnings.
- Further research into the genetic heterogeneity and phenotypic variability of Turcot syndrome is warranted.