title: Breast core biopsy reporting categories--An internal validation in a series of 3054 consecutive lesions.
abstract: We reviewed 3226 consecutive core biopsies (CBs) of 3054 mammographically detected breast lesions performed at our Centre from November 1993 to June 2003. CB diagnoses, classified according to the Non-operative Diagnosis Subgroup of the British National Health Service Breast Cancer Screening Programme (NHSBSP), were B5 (37.1%), B4 (0.5%), B3 (7.6%), B2 (50.9%) and B1 (3.9%). It was necessary to repeat the procedure in 172 cases (5.3%). The values for absolute sensitivity and specificity are 90.8% and 83.8%, respectively. The positive predictive value for categories B4 and B5 is 100%, with no false-positives. The positive predictive value for category B3 is 16.3%. The negative predictive value for B2 category is 97.2%, with a false-negative rate of 3.5%. In conclusion, this system of analysis has enabled us to confirm that our CB results surpass the minimum recommended standards proposed by the NHSBSP.
authors.affiliation: Pathology Department, UDIAT-Centre Diagnòstic Corporació Parc Taulí, Parc Taulí, s/n., 08208 Sabadell, Spain. xandreu@cspt.es
authors.forename: Francisco Javier
authors.initials: FJ
authors.lastname: Andreu
authors.forename: Amparo
authors.initials: A
authors.lastname: Sáez
authors.forename: Melcior
authors.initials: M
authors.lastname: Sentís
authors.forename: Mercè
authors.initials: M
authors.lastname: Rey
authors.forename: Sara
authors.initials: S
authors.lastname: Fernández
authors.forename: Carme
authors.initials: C
authors.lastname: Dinarès
authors.forename: Lidia
authors.initials: L
authors.lastname: Tortajada
authors.forename: Sergi
authors.initials: S
authors.lastname: Ganau
authors.forename: Gloria
authors.initials: G
authors.lastname: Palomar
mesh_terms: D001707:Biopsy, Needle / Q000145:classification* / Q000379:methods; D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D002285:Carcinoma, Intraductal, Noninfiltrating / Q000473:pathology*; D018275:Carcinoma, Lobular / Q000473:pathology; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D008327:Mammography; D011237:Predictive Value of Tests; D011785:Quality Assurance, Health Care