title: Quiz--An ossified soft tissue mass.
authors: Musculoskeletal Oncology Department, Istituto Ortopedico Rizzoli, Via Pupilli 1, 40136 Bologna, Italy.
authors: Akshay
authors: A
authors: Tiwari
authors: Daniel
authors: D
authors: Vanel
authors: Nicola
authors: N
authors: Fabbri
authors: Mario
authors: M
authors: Mercuri
authors: Marco
authors: M
authors: Alberghini
mesh_terms: D002114:Calcinosis / Q000150:complications* / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000150:complications* / Q000175:diagnosis*; D012983:Soft Tissue Neoplasms / Q000150:complications* / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed