%0 Journal Article %T Bi¨®psia com agulha grossa guiada por ultrassonografia para o diagn¨®stico dos tumores fibroepiteliais da mama %A Ricci %A Marcos Desid¨¦rio %A Amaral %A Paulo Gustavo Ten¨®rio do %A Aoki %A Denis Seiiti %A Oliveira Filho %A H¨¦lio Rubens de %A Pinheiro %A Walter da Silva %A Filassi %A Jos¨¦ Roberto %A Baracat %A Edmund Chada %J Revista Brasileira de Ginecologia e Obstetr¨ªcia %D 2011 %I Federa??o Brasileira das Sociedades de Ginecologia e Obstetr¨ªcia %R 10.1590/S0100-72032011000100004 %X purpose: to evaluate the concordance rate of ultrasound-guided core needle biopsy followed by excisional biopsy in palpable breast lumps, suggestive of fibroepithelial tumors. method: a retrospective study included 70 biopsies with a histological diagnosis of fibroepithelial tumor in 67 out of 531 patients with breast lesions submitted to ultrasound-guided core needle biopsy with a high frequency (7.5 mhz) linear transducer, using an automatic bard-magnum gun and a 14-gauge needle. cases with a diagnosis of fibroepithelial tumor by core needle biopsy or excisional biopsy and with a diagnosis of fibrosclerosis were included in the study. the agreement between the two biopsy methods was assessed using the kappa coefficient. results: excisional biopsy revealed 40 cases of fibroadenoma (57.1%), 19 cases of phyllodes tumor (27.2%), and 11 cases of fibrosclerosis (15.7%). the concordance rate for fibroadenoma was substantial (k = 0.68, 95%ci = 0.45 - 0.91), almost perfect for the phyllodes tumor (k = 0.81, 95%ci = 0.57 - 1.0), and moderate for fibrosclerosis (k = 0.58, 95%ci = 0.36 - 0.90). conclusions: the core needle biopsy is a minimally invasive method that has "substantial" to "almost perfect" concordance rate with excisional biopsy. fibrosclerosis should be considered in the differential diagnosis of fibroepithelial tumors. %K fibroadenoma %K neoplasms %K fibroepithelial [ultrasonography] %K breast neoplasms %K phyllodes tumor %K biopsy %K needle [methods] %K diagnosis %K differential %K ultrasonography %K interventional. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-72032011000100004&lng=en&nrm=iso&tlng=en