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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1995-9-21
pubmed:abstractText
A new histological grading system with prognostic correlation for pancreatic cancer was proposed by Klöppel et al. in 1985. Histological sections from 60 ductal adenocarcinomas operated on between January 1980 and December 1990 were retrospectively reviewed in order to compare Klöppel's grading with standard TNM's grading and assess their prognostic value. Klöppel grading was determined through the following histologic and cytologic factors: number duct-like structures, mucus production, neoplastic epithelium, arrangement and pleomorphism of nuclei, and mitotic activity. A score from 0 (well differentiated) to 2 (poorly differentiated) was given to each factor. The mean value obtained dividing the sum of the different values by the number of parameters was used to construct a malignancy scale and therefore allocate each patient to his Klöppel grading. The concordance index K between the two grading systems was relevant (K = 0.85 p < 0.001). There was no relation either between gradings (Klöppel or TNM) and preoperative duration of symptoms or between gradings and UICC stages. TNM's G2 grades of malignancy, N status, and tumor stage were significantly related to survival time (p < 0.05). Klöppel's grading does not show any advantage over the classical and simpler TNM's grading, even though it can be considered more objective and therefore more easily reproducible. This characteristic further should be enhanced by the introduction of a malignancy scale such as the "mean value."
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0169-4197
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
279-89
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Prognostic value of histological grading in ductal adenocarcinoma of the pancreas. Klöppel vs TNM grading.
pubmed:affiliation
Istituto di Chirurgia Generale e Sperimentale, Università degli Studi di Pisa, Ospedale di Cisanello, Italy.
pubmed:publicationType
Journal Article