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Morphology and Molecular Features of Rare Colorectal Carcinoma Histotypes

Overview
Journal Cancers (Basel)
Publisher MDPI
Specialty Oncology
Date 2019 Jul 26
PMID 31340478
Citations 33
Authors
Affiliations
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Abstract

Several histopathological variants of colorectal carcinoma can be distinguished, some associated with specific molecular profiles. However, in routine practice, ninety/ninety-five percent of all large bowel tumors are diagnosed as conventional adenocarcinoma, even though they are a heterogeneous group including rare histotypes, which are often under-recognized. Indeed, colorectal cancer exhibits differences in incidence, location of tumor, pathogenesis, molecular pathways and outcome depending on histotype. The aim is therefore to review the morphological and molecular features of these rare variants of intestinal carcinomas which may hold the key to differences in prognosis and treatment.

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