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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Diseases of the colon & rectum 42 (1999), S. 1-9 
    ISSN: 1530-0358
    Schlagwort(e): Hereditary nonpolyposis colorectal cancer ; Hereditary cancer ; Molecular genetics ; Mismatch repair ; Genetic testing ; Genetic counseling
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract One of the earliest references to heredity in colorectal cancer dates to Aldred Warthin's now-famous recollection of his seamstress' distress regarding “cancer excess” in her family history. her predication of an early demise secondary to cancer of the female organs, colon, or stomach proved true. The slow, arduous investigation that ensued followed a tortuous route of nearly eight decades before the implications of such family histories were widely acknowledged through the degisnation of hereditary nonpolyposis colorectal cancer or Lynch Syndrome Variants I and II. The story of hereditary nonpolyposis colorectal cancer is one of chance meetings, the selfless sharing of information, perseverance in the face of adversity, meticulous scientific documentation, and ultimate vindication by a scientific process that yielded molecular genetic evidence through the identification of the culprit mutations (hMSH2, hMLH1, hPMS2, and hMSH6). Our purpose is to provide a brief outline of the course charted by the study of the genetics of hereditary nonpolyposis colorectal cancer. This should be of particular interest to the readers of this Journal as we celebrate 100 years of dedication to the diagnosis and treatment of diseases of the colon, rectum, and anus through the efforts of The American Society of Colon and Rectal Surgeons.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1530-0358
    Schlagwort(e): Cancer genetics ; Colorectal cancer ; Genetic counseling ; Hereditary cancer ; Hereditary nonpolyposis colorectal cancer (HNPCC) ; Lynch syndrome II
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract PURPOSE: We updated an Uruguayan family with hereditary nonpolyposis colorectal cancer first described in 1977, incorporating knowledge of how thehMLH1 germline mutation has been established and shown to segregate in accord with the expected autosomal dominant mode of genetic transmission. METHODS: DNA-based molecular genetic testing was performed in conjunction with genetic counseling. Individuals were provided with their genetic test results, so that at-risk family members would be able to benefit from targeted management programs. RESULTS: We counseled 19 members of this kindred, 13 of whom were positive for thehMLH1 germline mutation. Specific recommendations for surveillance and management were provided. We were able to describe follow-up, including anecdotal cancer survival and pathology findings extending from the initial 1977 report of this family to the present. A remarkable sibship within this kindred was comprised of eight siblings, six of whom underwent resections for colorectal carcinoma between 1963 and 1971. Colon carcinomas before 1977 in this sibship were treated with classic hemicolectomies. Of those who had hemicolectomies for their first primary colorectal cancers, two had a second colon cancer primary, and two had a third colon cancer primary. CONCLUSIONS: Attention given to this extended family with hereditary nonpolyposis colorectal cancer has had a positive impact on the physician community in Uruguay, leading to the identification of additional families with hereditary nonpolyposis colorectal cancer.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Diseases of the colon & rectum 42 (1999), S. 31-35 
    ISSN: 1530-0358
    Schlagwort(e): Hereditary nonpolyposis colorectal cancer ; Colorectal cancer ; Malpractice ; Family history ; Hereditary cancer syndrome diagnosis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract PURPOSE: We describe a patient who had precancerous colonic symptoms and a positive family history of multiple occurrences of early-onset colorectal cancer in her first-degree and second-degree relatives consistent with hereditary nonpolyposis colorectal cancer. Hereditary nonpolyposis colorectal cancer diagnosis had not been made before her diagnosis of carcinoma of the cecum with liver metastasis. She died at age 20, leading to litigation. Controversies about standards of care, their malpractice implications, and pertinent legal issues are discussed. METHODS: Review of the medical and family history was made by the expert witness (HTL) with appropriate documentation of the chronology of symptoms, as derived from depositions. These documents revealed that the patient's mother had repeatedly discussed with the caregivers her concern about the family history of colon cancer and the need for appropriate surveillance. RESULTS: The patient's colonic symptoms progressed for a period of three years. Flexible sigmoidoscopy was performed by a nonphysician. The physician who ordered the procedure considered this appropriate because isolated polyps were reported in the patient's father and paternal uncle, which apparently led him to believe that the diagnosis was familial adenomatous polyposis. During litigation procedures, a pedigree was constructed and found to be consistent with hereditary nonpolyposis colorectal cancer. The case was settled in favor of the plaintiff before trial. CONCLUSION: It is essential to understand the natural history of hereditary nonpolyposis colorectal cancer, inclusive of the need for surveillance colonoscopy in patients at increased risk by virtue of their position in their family pedigree.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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