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Familial nonmedullary thyroid carcinoma
Carl D Malchoff1, Diana M Malchoff
1Division of Endocrinology, University of Connecticut Health Center, Farmington, CT 06030, USA. malchoff@nso2.uchc.edu
Summary
Familial nonmedullary thyroid carcinoma (FNMTC) suggests an inherited genetic predisposition. Early detection and careful monitoring are crucial for affected individuals due to potentially higher recurrence rates.
Area of Science:
- Oncology
- Genetics
- Endocrinology
Background:
- Nonmedullary thyroid carcinomas (NMTCs) were traditionally considered sporadic.
- Emerging evidence indicates a familial predisposition to NMTC.
- This predisposition suggests an inherited genetic component.
Purpose of the Study:
- To review the evidence for inherited genetic predisposition to NMTC.
- To discuss the clinical implications of familial NMTC (FNMTC).
- To explore genetic analyses and epidemiologic studies related to FNMTC.
Main Methods:
- Review of epidemiologic studies.
- Analysis of large kindreds with NMTC.
- Examination of genetic analyses findings.
Main Results:
- Familial NMTC can be categorized into two groups based on tumor prevalence.
- Group 1: NMTC within familial cancer syndromes with other tumors.
- Group 2: NMTC as the predominant neoplasm, with potential for other tumors.
Conclusions:
- Family history is vital for identifying FNMTC and related familial cancer syndromes.
- FNMTC may have higher recurrence rates than sporadic NMTC, necessitating vigilant monitoring.
- Positional cloning research is ongoing to identify FNMTC susceptibility genes.