title: [Clinicopathological and biological features of breast cancer in young females and their relationship with prognosis].
abstract: OBJECTIVE
  To study the relationship between clinicopathological and biological characteristics and prognosis in young females with breast cancer.
  
  
  METHODS
  The clinicopathological data of 99 young patients (< or =35years) with primary breast cancer were analyzed retrospectively. All the 99 patients were followed up for 5 years. The histological specimens were reviewed. The expression of ER, PR, AR, c-erbB2, ki67, p53 and BRCA1 were assessed by immunohistochemistry in 63 carcinomas.
  
  
  RESULTS
  The lymph node involvement, 5-year metastasis and 5-year survival rate were 59.6% (59/99), 28.0% (26/ 93) and 72.7% (72/99), respectively. The univariate analysis showed that the survival was related to lymphatic vessel invasion, fat involvement, node-positive status, EIC, AR and c-erbB2 expression. The COX multivariate analysis identified that only node-positive status, AR negativity and c-erbB2 overexpression were independent prognostic factors.
  
  
  CONCLUSIONS
  Our data demonstrated that the lymph node status and c-erbB2 expression are strong prognostic factors in young patients with breast cancer. AR may be an adjuvant prognostic factor. The therapeutic measurement could not benefit the outcome radically.
authors.affiliation: Department of Breast Pathology, Tianjin Cancer Hospital, Tianjin Medical University, Tianjin 300060, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Meng
authors.forename: Rong-gang
authors.initials: RG
authors.lastname: Lang
authors.forename: Yu
authors.initials: Y
authors.lastname: Fan
authors.forename: Li
authors.initials: L
authors.lastname: Fu
mesh_terms: D000328:Adult; D014408:Biomarkers, Tumor / Q000032:analysis*; D001943:Breast Neoplasms / Q000378:metabolism / Q000401:mortality / Q000473:pathology*; D018270:Carcinoma, Ductal, Breast / Q000378:metabolism / Q000473:pathology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry / Q000706:statistics & numerical data; D019394:Ki-67 Antigen / Q000032:analysis; D008207:Lymphatic Metastasis; D015999:Multivariate Analysis; D011379:Prognosis; D016016:Proportional Hazards Models; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000032:analysis; D011944:Receptors, Androgen / Q000032:analysis; D011960:Receptors, Estrogen / Q000378:metabolism; D011980:Receptors, Progesterone / Q000378:metabolism; D012189:Retrospective Studies; D016019:Survival Analysis; D015996:Survival Rate; D016159:Tumor Suppressor Protein p53 / Q000032:analysis
chemical_list: D014408:Biomarkers, Tumor; D019394:Ki-67 Antigen; D018719:Erb-b2 Receptor Tyrosine Kinases; D011944:Receptors, Androgen; D011960:Receptors, Estrogen; D011980:Receptors, Progesterone; D016159:Tumor Suppressor Protein p53