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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2010-10-4
pubmed:abstractText
Medullary carcinomas have a better prognosis than other grade 3 mammary carcinomas, but they typically show basal-like biological features, which are associated with a poor prognosis. In this study we examined the associations and prognostic relevance of medullary histological features in a series of 165 invasive carcinomas with a basal-like phenotype: triple-negative (oestrogen receptor, progesterone receptor, HER2) and expressing at least one basal marker (CK5/6, CK14, CK17 or EGFR). The following histological features were associated with each other: prominent inflammation, anastomosing sheets, absence of fibrosis, absence of infiltrative margin and absence of gland formation. Prominent inflammation and anastomosing sheets in at least 30% of the tumour were associated with a better prognosis on univariate analysis. The combination of these two features (a simplified definition of medullary-like type) was present in 17% of tumours and was an independent prognostic factor on multivariate analysis. This simplified definition had good inter-observer reproducibility (?=0.61) and is worthy of more detailed assessment in an unselected group of mammary carcinomas. A fibrotic focus was present in 36% of carcinomas. Only 3% of tumours with a fibrotic focus had features of medullary-like carcinomas. Fibrotic focus of greater than 30% of the tumour was associated with a poor prognosis. This study emphasizes the heterogeneity of morphology and behaviour of triple-negative basal-like carcinomas.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1530-0285
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1357-63
pubmed:meshHeading
pubmed-meshheading:20581807-Aged, pubmed-meshheading:20581807-Breast Neoplasms, pubmed-meshheading:20581807-Carcinoma, Medullary, pubmed-meshheading:20581807-Female, pubmed-meshheading:20581807-Genes, erbB-2, pubmed-meshheading:20581807-Humans, pubmed-meshheading:20581807-Immunophenotyping, pubmed-meshheading:20581807-Kaplan-Meier Estimate, pubmed-meshheading:20581807-Keratin-14, pubmed-meshheading:20581807-Keratin-17, pubmed-meshheading:20581807-Keratin-5, pubmed-meshheading:20581807-Keratin-6, pubmed-meshheading:20581807-Middle Aged, pubmed-meshheading:20581807-Prognosis, pubmed-meshheading:20581807-Receptor, Epidermal Growth Factor, pubmed-meshheading:20581807-Receptors, Estrogen, pubmed-meshheading:20581807-Receptors, Progesterone, pubmed-meshheading:20581807-Tumor Markers, Biological
pubmed:year
2010
pubmed:articleTitle
Histological features of medullary carcinoma and prognosis in triple-negative basal-like carcinomas of the breast.
pubmed:affiliation
Department of Histopathology, Nottingham University Hospitals, Nottingham, UK.
pubmed:publicationType
Journal Article