Clinicopathologic features and immunohistochemistry of the basal-like subtype of invasive breast carcinoma.
- VernacularTitle:基底细胞样乳腺癌临床病理特征及免疫组织化学分析
- Author:
Li-ping LIU
1
;
Jun BAI
;
Ya WEI
;
Xiao-dong QI
;
Ting-chen SI
;
Wei LI
;
Hui PAN
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Aged, 80 and over; Breast Neoplasms; metabolism; pathology; Breast Neoplasms, Male; metabolism; pathology; Carcinoma, Basal Cell; metabolism; pathology; Carcinoma, Ductal, Breast; metabolism; pathology; Female; Humans; Immunohistochemistry; Keratin-14; metabolism; Keratin-17; metabolism; Keratin-5; metabolism; Keratin-6; metabolism; Lymphatic Metastasis; Male; Middle Aged; Receptor, ErbB-2; metabolism; Receptors, Estrogen; metabolism; Receptors, Progesterone; metabolism
- From: Chinese Journal of Pathology 2013;42(2):101-105
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the clinicopathologic features and immunohistochemical of the basal-like subtype of invasive breast carcinoma (BLBC), and to discuss the diagnosis standard.
METHODSImmunohistochemistry was performed in 448 cases of breast carcinoma and these cases were categorized into luminal A, luminal B, null subtypes, HER2-overexpressing and basal-like and their clinicopathologic features were observed under light microscope with stains of HE and immunohistochemical InVitrogen staining.
RESULTSAmong the breast cancer patients, the incidence of BLBC was 15.4% (69/448). Morphologic features significantly associated with BLBC constituently included nest structure and showing diffuse growth pattern, large scarring areas without cells in tumor, geographic necrosis, pushing margin of invasion, lymphocytic infiltrate in various degree in tumor stroma, syncytial tumor cell without clear boundaries, tumor cell showing vesicular unclear chromatin and nucleolus, markedly elevated mitotic count, metaplasia (all P < 0.01). Meanwhile, most BLBC showed strong immunoreactivity for CK5/6, CK14, CK17 (all P < 0.01).
CONCLUSIONBLBC showed distinct morphologic and immunophenotypic features.
