Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-2-15
pubmed:abstractText
A histological diagnosis of pT4 stage is used as the basis for offering adjuvant therapy to patients with colorectal cancer. Histological features diagnostic of pT4 stage in colorectal cancer include: (1) presence of tumour perforation, (2) invasion of an adjacent organ, (3) direct or discontinuous tumour extending to the non-peritonealised resection margin, and (4) tumour breaching the visceral peritoneum. Histological parameters to identify these features are not always entirely straightforward, making recognition of pT4 stage difficult at times. The presence of a cellular mesothelial reaction and/or inflammation extending to the serosal surface causes considerable confusion and may result in upstaging pT3 tumours. Conversely, involvement of the non-peritonealised margin in colonic tumours other than rectal cancers is at a risk of being understaged. Audits have shown that significant differences remain in the frequency with which serosal involvement is found between individual pathologists and multidisciplinary teams. The recognition of the criteria that define pT4a and pT4b subsets in pT4 stage to highlight different therapeutic connotations is not universally accepted, and this is likely to affect future reporting of the subsets. The review article highlights the contentious issues in histopathological recognition of pT4 tumour stage based on microscopic parameters in colorectal cancer.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1472-4146
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
63
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
110-5
pubmed:dateRevised
2010-8-23
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Histopathological reporting of pT4 tumour stage in colorectal carcinomas: dotting the 'i's and crossing the 't's.
pubmed:affiliation
Department of Histopathology, Queen Elizabeth Hospital II, Welwyn Garden City, Hertfordshire AL7 4HQ, UK. rajiv.swamy@nhs.net
pubmed:publicationType
Journal Article, Review