Abstract
Arthroplasty-related pseudotumors are nonneoplastic and noninfectious inflammatory
masses that are typically associated with adverse reaction to metal debris. Pseudotumors
most commonly occur in the setting of metal-on-metal joint replacements at the hip.
However, the presentation of pseudotumor at the shoulder is exceedingly rare. In this
article, we reported a case of arthroplasty-related pseudotumor of the scapula. Clinical
history, radiologic signs, and tissue analysis are described. Knowledge of this rare
diagnosis will support clinical decision making for teams of radiologists, pathologists,
oncologists, and orthopaedic surgeons who provide care for patients presenting with
suspicious shoulder masses.
Keywords
arthroplasty - CT - metal - metallosis - pseudotumor - radiograph - shoulder
