The BUS_UC dataset includes 358 benign tumor images and 453 malignant tumor images. The resolution of Ultrasound images is 256 × 256 pixels. All these images were obtained from the website Ultrasound Cases (ultrasoundcases.info), which does not provide ground truth images. Therefore, with the help of an experienced radiologist, benign and malignant tumor images are annotated for segmentation and classification task. If you use this dataset, Please cite : Ahmed Iqbal, Muhammad Sharif, "Memory-efficient transformer network with feature fusion for breast tumor segmentation and classification task ", Engineering Applications of Artificial Intelligence, 2023.