A Mimicker of Malignancy: A Case Report on Elastofibroma Dorsi

Elastofibroma dorsi is a soft tissue tumor rarely identified on imaging. It is most commonly located in the infrascapular region, deep to the serratus anterior and latissimus dorsi of older women. We present a case of an asymptomatic female patient with a history of left rotator cuff repair and chronic lymphocytic leukemia in remission who was found to have elastofibroma dorsi. As a benign tumoral entity that can look hypermetabolic on positron emission tomography-computed tomography scan (PET-CT), this case demonstrates the importance of an effective clinical diagnosis of elastofibroma dorsi to avoid unnecessary procedures and their related complications while also providing an enhanced understanding of its clinical presentation and radiological and pathological features.