Male 65 years old with left posterior shoulder mass. Evaluate for interval change. There is a lobulated mass confined within the posterior subcutaneous fat overlying the scapula. It has high T1 signal and areas of high T2 signal on fat-saturated images. Mild enhancement is again seen on the postcontrast images with the majority of enhancement along the periphery and within septations similar to the previous exam. The lesion measures approximately 12.1 x 3.2 cm in transverse and AP dimension (series 6, image 25) and 14.0 cm in craniocaudal dimension (series 8, image 18). This is minimally increased in size but stable in imaging characteristics compared to the prior studies. Differences in size may be due to differences in plane of imaging and measurement techniques.This exam was not tailored for evaluation of the rotator cuff however there is increased signal intensity within the anterior fibers of the supraspinatus tendon suggesting a articular sided partial-thickness tear. There are small degenerative cysts in the underlying humeral head.
Slight increase in size but stable imaging appearance of the predominantly fatty mass in the posterior subcutaneous tissues overlying the scapula. Differential considerations again include hypernephroma, atypical lipoma and atypical lipomatous tumor.