Closed–mouth-related MR images in a 61-year-old female with a 18-month history of left TMJ pain, a TMJ pain-side-related clinical diagnosis of TMJ AR, and the MRI finding of disk displacement without reduction, CE, bone marrow edema, and effusion. Coronal MR image shows condyle with CE (red arrow), bone marrow edema (white arrows), and effusion in the superior joint compartment (yellow errors)