Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2008-9-19
pubmed:abstractText
The distinction between tubular carcinomas (TC) and invasive well-differentiated (grade 1) ductal carcinoma (IDC) is important given treatment and prognostic differences. Studies have described a strong association between flat epithelial atypia (FEA) and TC. The incidence of FEA associated with grade 1 IDC is not well established. The aim of the present study was to assess morphology and intra-epithelial lesions between 14 TC and 18 grade 1 IDC matched for size. Of 14 TC, eight (57%) had associated FEA, seven (50%) had micropapillary atypical ductal hyperplasia (ADH), three (21%) had low nuclear grade ductal carcinoma in situ (DCIS), and four (29%) had lobular neoplasia. Notably, only two of 18 (11%) grade 1 IDC had associated FEA. Three of 18 (16%) grade 1 IDC had ADH, two (11%) had lobular neoplasia, and seven (39%) had DCIS. All tubular carcinomas were estrogen receptor (ER) positive and negative for Her-2/neu overexpression. All grade 1 IDC were ER positive but 5% also overexpressed Her-2/neu. Axillary lymph node metastasis was present in 11% of grade 1 IDC and absent in TC. A strong association was found between TC, FEA, and micropapillary ADH, which may reflect a biological progression. Despite matching for tumor size, grade 1 IDC have a higher incidence of lymph node metastasis and may have Her-2-neu overexpression compared to TC.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1440-1827
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
58
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
620-5
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:18801081-Adenocarcinoma, pubmed-meshheading:18801081-Adult, pubmed-meshheading:18801081-Aged, pubmed-meshheading:18801081-Aged, 80 and over, pubmed-meshheading:18801081-Breast Neoplasms, pubmed-meshheading:18801081-Carcinoma, Ductal, Breast, pubmed-meshheading:18801081-Carcinoma, Intraductal, Noninfiltrating, pubmed-meshheading:18801081-Cell Nucleus, pubmed-meshheading:18801081-Epithelial Cells, pubmed-meshheading:18801081-Female, pubmed-meshheading:18801081-Humans, pubmed-meshheading:18801081-In Situ Hybridization, Fluorescence, pubmed-meshheading:18801081-Lymph Nodes, pubmed-meshheading:18801081-Lymphatic Metastasis, pubmed-meshheading:18801081-Middle Aged, pubmed-meshheading:18801081-Prognosis, pubmed-meshheading:18801081-Receptor, erbB-2, pubmed-meshheading:18801081-Receptors, Estrogen, pubmed-meshheading:18801081-Receptors, Progesterone, pubmed-meshheading:18801081-Tumor Markers, Biological
pubmed:year
2008
pubmed:articleTitle
Tubular carcinoma and grade 1 (well-differentiated) invasive ductal carcinoma: comparison of flat epithelial atypia and other intra-epithelial lesions.
pubmed:affiliation
Department of Pathology, University of Michigan School of Medicine, Ann Arbor, Michigan 48109, USA.
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural