Magnetic resonance imaging (MRI) for diagnostic evaluation of the breast was performed in 61 patients who visted the Breast Clinic of our hospital and were suspected to have malignant tumors by physical examination and mammography between January and December 1999. In 58 patients undergoing histological diagnostic tests (8 with benignancy and 50 with breast cancer), we compared the imaging characteristics and the time-signal intensity curves acquired by dynamic imaging between benign and malignant lesions, and evaluated the usefulness of analyzing enhancement patterns on contrast MRI. Contrast MRI revealed strong tumor enhancement in all patients; the mean time required for the signal intensity to reach a peak was about 7 min in patients with benign tumors and about 2 min in those with breast cancer. Peripheral ring enhancement was observed in 40 of the 50 patients with breast cancer (80.0%), while such enhancement was not noted in any of the patients with benign tumors.
Although diagnosis of breast disease by imaging has primarily relied on mammography and ultrasonography, the pattern of contrast enhancement on dynamic MRI also appears to be useful for determining the treatment method of breast tumors.

The Common Achievement Tests for medical students consists of Computer Based Testing (CBT) conducted before clinical training, and Objective Structured Clinical Examination (OSCE) conducted before and after clinical training. Since the publicization of the Common Achievement Tests for medical students before clinical training in 2023, the Committee for Reasonable Accommodation has been established within the Common Achievement Tests Organization (CATO), where reasonable accommodations for each exam are being considered. Reasonable accommodations begin with an assessment based on requests from candidates and proceed through constructive dialogue between candidates and universities. Additionally, recordings of practical training sessions are provided to facilitate objective assessments, enabling the provision of reasonable accommodations tailored to candidates’ participation in clinical training and internships, thereby ensuring smooth examination processes.