Do all mucocele-like lesions of the breast require surgery?

Aim: The objective of this study is to review the imaging features and percutaneous biopsy findings of mucocele-like lesions (MLLs) of the breast and correlate these with histopathology at surgical excision (SE), where available, to determine whether all MLLs of the breast require surgery for management.

Materials And Methods: A search of two pathology databases was performed to identify 44 patients who had been diagnosed with MLL of the breast and who had corresponding imaging findings available for review. These patients' medical records were reviewed to determine patient age at diagnosis, site of disease/affected breast, symptoms at diagnosis, mammographic and sonographic findings and methods used for histopathologic diagnosis (percutaneous biopsy and/or SE).

Lobular neoplasia on core-needle biopsy--clinical significance.

Background: Approximately 25% of all cases of atypical ductal hyperplasia (ADH) diagnosed on core biopsy of the breast are associated with ductal carcinoma in situ (DCIS) or invasive malignancy at the same site. As a result, surgical excision has become the standard of care for patients with ADH. In contrast, because data on the relation between breast malignancy and lobular neoplasia (LN) detected on core biopsy are limited, clinical management of patients with LN remains controversial.