MKI67 and alveolar soft part sarcoma: <h4>Objective</h4>To investigate the correlation between MRI findings and histological features for preoperative prediction of histological grading and Ki-67 expression level in alveolar soft part sarcoma (ASPS).<h4>Methods</h4>A retrospective analysis was conducted on 63 ASPS patients (Jan 2017-May 2023).