title: [Effect of pre-operative biopsy for breast cancer on survival rate].
abstract: To study the effect of pre-operative biopsy for breast cancer on the 10-year-survival rate, 1123 cases with single cancer radically operated at the Cancer Institute Hospital between Jan. 1960 and Dec. 1969 were analyzed. The survival rate in 292 biopsied and non-biopsied patients with cancers less than 2 cm in diameter and no lymph node metastasis was not significantly different. There was no difference between incisional- and excisional-biopsied patients. However, the survival rates tended to decrease as the interval between biopsy and radical surgery increased. We conclude that pre-operative biopsy does not worsen the prognosis in patients with breast cancer. Early detection and treatment are of great importance.
mesh_terms: D001706:Biopsy; D001940:Breast / Q000473:pathology*; D001943:Breast Neoplasms / Q000401:mortality* / Q000473:pathology; D005260:Female; D006801:Humans; D007564:Japan; D008207:Lymphatic Metastasis; D011379:Prognosis