Published in:
01-09-2011 | Breast Oncology
Papillary Lesions Initially Diagnosed at Ultrasound-guided Vacuum-assisted Breast Biopsy: Rate of Malignancy Based on Subsequent Surgical Excision
Authors:
Jung Min Chang, MD, Wonsik Han, MD, Woo Kyung Moon, MD, Nariya Cho, MD, Dong-Young Noh, MD, In-Ae Park, MD, Eun-Jung Jung, MD
Published in:
Annals of Surgical Oncology
|
Issue 9/2011
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Abstract
Purpose
To prospectively determine the rate of malignancy after surgery in papillary lesions initially diagnosed at ultrasound (US)-guided 11-gauge vacuum-assisted breast biopsies.
Methods
Between May 2007 and December 2009, a total of 85 papillary lesions, including 73 benign papillomas and 12 atypical papillomas were diagnosed in 83 patients by US-guided 11-gauge vacuum-assisted breast biopsy. Surgical excision was recommended for all patients and 60 nonmalignant papillary lesions (49 benign papillomas and 11 atypical papillomas) in 60 patients (age range, 24–66 years; mean age, 45.0 years) were surgically excised. On a per-lesion basis, the upgrade rate to malignancy was calculated. Associations between clinical, lesion, and biopsy variables and the results of surgical excision were examined with a χ2 test.
Results
Surgical excision revealed the presence of benign papillomas in 34 cases, no residual lesion in 15 cases, atypical papillomas in nine cases, and ductal carcinoma-in-situ in two cases. The upgrade rate was 0% (0 of 49; 95% confidence interval 0–7.2) for benign papillomas and 18.2% (2 of 11; 95% confidence interval 2.3–51.8) for atypical papillomas. The core findings of atypical papillomas (P = 0.031) and age (P = 0.046) were associated with malignancy at excision, whereas personal or family history, presence of symptoms, multiplicity, lesion type, size, distance from the nipple, Breast Imaging Reporting and Data System (BI-RADS) category, and lesion removal at US showed no correlation to upgrade.
Conclusions
Surgical excision may not be required for lesions with a diagnosis of benign papilloma after US-guided 11-gauge vacuum-assisted breast biopsy, and a diagnosis of atypical papilloma should prompt excision for a definitive diagnosis.