Breast and Lymph Node Ultrasound Image Dataset for Lesion Detection and Characterization

This dataset includes a curated subset of 45 fully anonymized breast and axillary lymph node ultrasound images collected at Taichung Veterans General Hospital for public illustration. In addition, annotation files corresponding to the curated dataset (approximately 3,800 images) are provided in JSON (Labelme) format. These annotation files contain expert-defined lesion annotations and associated metadata, allowing users to review the annotation structure and incorporate the dataset into detection benchmarking or related image analysis workflows.All images were anonymized prior to release in accordance with institutional privacy requirements, and no patient-identifying information was preserved. Access to the complete curated image set is available under controlled conditions through Figshare in accordance with the IRB-approved Data Use Agreement.