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A 5-Year Study

William R. Thompson, MD; J. Robert Bowen, MD; Brian A. Dorman, MD; Victor E. Pricolo, MD; Thomas K. Shahinian, MD; Clarence H. Soderberg, Jr, MD

Arch Surg. 1991;126(6):730-734.

Abstract
• A malignancy rate of 24% was achieved as a result of needle localizations and biopsies of 548 nonpalpable mammographically detected breast lesions in 507 consecutive patients during a 5-year period. Malignancy was present in 74 (23.8%) of 311 irregular soft-tissue densities, in 40 (19.6%) of 204 cases with clustered microcalcifications, and in 33 cases (54.5%) when both features were present. Sameday admission and discharge were achieved in 491 patients and local anesthesia supplemented with intravenous sedation was used in 73 (74%) of the 98 patients (in 1989) by the end of the study period. Nonpalpable cancers were categorized pathologically as stage 0 in 25 patients (20.8%), stage I in 67 patients (55.8%), stage IIA in 24 patients (20.0%), and stage IIB in four patients (3.3%). The malignancy rate rose sharply from the fourth to the fifth decade.

(Arch Surg. 1991;126:730-734)

Author Affiliations
From the Department of Surgery, Rhode Island Hospital, Brown University Program in Medicine, Providence.

Footnotes
Accepted for publication February 16, 1991.

Read before the 71st Annual Meeting of the New England Surgical Society, Newport, RI, September 14, 1990.

Reprint requests to Department of Surgery, Rhode Island Hospital/Brown University, 235 Plain St, Providence, RI 02902 (Dr Thompson).

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