Clinicopathologic features and prognostic significance of basal-like breast cancer / 中华病理学杂志
Chinese Journal of Pathology
;
(12): 316-322, 2009.
Artigo
em Chinês
| WPRIM
| ID: wpr-319738
ABSTRACT
<p><b>OBJECTIVE</b>To analyzed a large group of invasive breast cancers with long-term follow-up information to evaluate the clinicopathologic, morphological and prognostic features of basal-like breast cancers in Chinese population.</p><p><b>METHODS</b>Immunohistochemistry was used to detect the expression of ER, HER2, CK5/6, EGFR on tissue microarray with 1311 invasive breast cancers. Based on the results, these cases were categorized into luminal A, luminal B, basal-like, HER2-overexpressing and null subtypes. Clinicopathological features and survival rates were compared between these groups.</p><p><b>RESULTS</b>Basal-like breast cancers constituted 17.0% of 1311 invasive breast cancers with a significantly larger size, higher grade and higher incidence of the medullary carcinoma, frequent recurrence and infrequent node metastasis. Morphologically, basal-like breast cancers showed a significantly more solid architecture and ribbon-like architecture associated with necrosis (more geographic necrosis) and central scar, a more pushing margin, lymphocytic infiltration and a higher mitosis score, more syncytial growth, presence of basaloid cells, spindle cells and squamous metaplasia. The disease-free survival and overall survival of basal-like breast cancers were significantly poorer than that of luminal A subtype, but similar to the other ER-negative subtypes. Basal markers were not independent prognostic factors.</p><p><b>CONCLUSIONS</b>Basal-like breast cancers in Chinese population has a similar prevalence to that of the western populations. They have distinct clinicopathologic features compared to other non-basal breast cancers, but overlapping with other ER-negative breast cancers. Morphological features are strongly associated with basal-like breast cancers although they are not very specific. The survival of basal-like breast cancers is poorer than luminal A, but similar to the other ER-negative breast cancers, and basal markers are not independent prognostic factors of breast cancers.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Cirurgia Geral
/
Neoplasias da Mama
/
Receptores de Estrogênio
/
China
/
Epidemiologia
/
Taxa de Sobrevida
/
Seguimentos
/
Carcinoma Ductal de Mama
/
Receptor ErbB-2
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
Limite:
Adulto
/
Idoso
/
Aged80
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
Ásia
Idioma:
Chinês
Revista:
Chinese Journal of Pathology
Ano de publicação:
2009
Tipo de documento:
Artigo
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