Breast ultrasound is used to characterize palpable and mammographically detected breast masses. Fibroadenoma — the most common benign solid breast mass — appears as a well-circumscribed, homogeneous, hypoechoic, oval lesion parallel to the skin with gentle lobulation and posterior acoustic enhancement. ACR BI-RADS lexicon (composition, orientation, margins, echo pattern, posterior features) standardizes ultrasound reporting.
ICD-10 Code: N60.2 | MeSH ID: D005720 | Primary Anatomy: Breast
Key Reference: PubMed: PMID: 35412355