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Colons epiteliale tumorer - Gastro.patologi.org

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Hereditær Non Polyposis Colorectal Cancer (HNPCC)<br />

• Defineres ved Amsterdam kriterierne<br />

– Forekomst af 3 tilfælde af 1. grads<br />

slægtninge med KRC i løbet af 2<br />

generationer, heraf mindst et tilfælde<br />

under 50-års alderen<br />

• Autosomal dominant<br />

• Nedarvet mutation i et af mismatch<br />

repair generne efterfulgt af somatisk<br />

mutation i samme (Loss Of<br />

Heterozygosity – LOH)<br />

• Langt hyppigst hMLH1 eller hMSH2<br />

• Udgør

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