The outcome of a triple assessment for a breast lesion dictates the surgical therapy that ensues. In some circumstances, the preoperative assessment may yield inconclusive or indeterminate results thus requiring an excision biopsy to confirm the histological diagnosis. Where a lesion is preoperatively proven to be benign, decision to excise the lesion may be due to patient preference, the size of the lesion (e.g a large (> 2cm) fibro adenoma) or suspicious clinical features. Both approaches involve an excision of the target lesion with minimal disruption of surrounding normal breast tissue.
Indications for an Excision Biopsy/Lumpectomy
- Excision of a proven benign lesion due to:
- Patient preference
- Large lesions resulting in a cosmetic defect
- Suspicious clinical history
- Lesions with indeterminate or atypical histology (B3) on preoperative assessment (e.g ADH, ALH, ductal hyperplasia of usual type) or suspicious clinical features.
- Presence of a radial scar (associated with the presence of atypia or malignancy).