Large tumoral calcinosis and pathological femur fracture in a hemodialysis patient with secondary hyperparathyroidism

A 49-year-old woman was admitted to our hospital with a swelling over the left proximal thigh. The swelling has existed for 2 years. Her left hip joint has not moved freely for 15 days before her hospitalization without obvious precipitating factors. She has received thrice weekly maintenance hemodialysis for chronic renal failure for 12 years. She denied the history of familial TC, infection, and major traumatic injury. Additionally, no masses were found around other joints. Physical examination revealed a large and hard mass around the left proximal thigh. The patient complained a painful sensation while palpating the mass. The overlying skin and local temperature was normal. The left hip joint could not move freely.