Background: Determining the negative predictive value of benign large-core needle biopsy of nonpalpable mammographically detected breast abnormalities has been difficult because benign results generally preclude surgical excision. Longterm followup of these patients is important to ensure timely diagnosis of new abnormalities and to identify false negatives.
Study Design: This cohort study comprised 379 patients, all with benign diagnoses following imaging-guided large-core needle biopsy of nonpalpable mammographically detected abnormalities.
Background And Objectives: To determine the sentinel node detection rate and the accuracy with which the sentinel node histology reflects that of the axilla in a series of patients with palpable invasive breast cancer.
Methods: Forty-four patients with clinically node-negative palpable invasive T1 or T2 breast tumors underwent sentinel node biopsy using isosulfan blue dye, followed immediately by either local excision of the primary lesion with standard axillary lymph node dissection or modified radical mastectomy. All surgeries were performed at Northwest Hospital, Seattle, Washington, between January 1996 and October 1997.
Objective: To examine the histologic correlation between image-guided large-core needle biopsy (LCNB) and excisional biopsy of nonpalpable breast lesions.
Design: Histologic findings of LCNB and excision specimens were reviewed for patients who underwent image-guided LCNB of nonpalpable breast lesions from April 1, 1993, to March 31, 1996. Histologic diagnosis of the excision specimen was used as a criterion standard.