3 research outputs found
Ultrasound-guided core needle biopsy for the diagnosis of fibroepithelial breast tumors
OBJETIVO: avaliar a taxa de concord芒ncia da bi贸psia percut芒nea com agulha grossa guiada por ultrassom seguida pela bi贸psia excisional em n贸dulos de mama palp谩veis, sugestivos de tumores fibroepiteliais. M脡TODO: estudo retrospectivo que selecionou 70 bi贸psias com diagn贸stico histol贸gico de tumor fibroepitelial em 67 dentre 531 pacientes com les玫es mam谩rias submetidas 脿 bi贸psia percut芒nea com agulha grossa guiada por ultrassonografia, com transdutor linear de alta frequ锚ncia (7.5 MHz), utilizando pistola autom谩tica Bard-Magnum e agulha 14 gauge. Foram inclu铆dos os casos com diagn贸stico de tumor fibroepitelial na bi贸psia percut芒nea ou bi贸psia excisional. Bi贸psias com diagn贸stico histopatol贸gico de fibroesclerose tamb茅m foram inclu铆das no estudo. A for莽a da concord芒ncia entre o resultado da bi贸psia percut芒nea e da bi贸psia excisional foi medida pelo coeficiente de Kappa. RESULTADOS: a bi贸psia excisional revelou 40 casos de fibroadenoma (57,1%), 19 de tumor filoide (27,2%) e 11 de fibroesclerose (15,7%). A taxa de concord芒ncia para o fibroadenoma foi substancial (k = 0,68; IC95% = 0,45 - 0,91), quase perfeita para o tumor filoide (k = 0,81; IC95% = 0,57 - 1,0) e moderada para a fibroesclerose (k = 0,58; IC95% = 0,36 - 0,90). CONCLUS脮ES: a bi贸psia percut芒nea com agulha grossa 茅 proped锚utica minimamente invasiva que tem taxas de concord芒ncia com a bi贸psia excisional, de "substancial" a "quase perfeita". A fibroesclerose deve ser considerada no diagn贸stico diferencial dos tumores fibroepiteliais.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