architectural distortion
Abnormal breast tissue pattern on imaging characterized by disruption of normal breast architecture without visible mass.
Full Definition
Architectural distortion refers to an abnormal pattern visible on breast imaging (mammography, ultrasound, or MRI) where the normal breast tissue architecture appears disrupted or distorted without the presence of a definable mass or calcifications. This finding may manifest as radiating lines, focal retraction, or asymmetric tissue patterns that differ from the surrounding breast parenchyma. While architectural distortion can be benign (post-surgical, post-radiation, or due to benign scarring), it may also represent malignancy, particularly invasive lobular carcinoma, and typically requires tissue sampling for definitive diagnosis.
Usage
Usage note: Describe location, extent, and associated findings for complete documentation.
In Context
- "Mammography revealed architectural distortion in the upper outer quadrant without associated calcifications or mass." — Radiology report
- "The area of architectural distortion corresponded to invasive lobular carcinoma on core biopsy." — Pathology correlation note