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A previously healthy girl aged 15 years presented with a nocturnal onset of a large painful hard mass over her left trochanteric region, with hyperaemic skin. The following week a similar one was palpable over her right elbow. Radiographs showed well-defined calcified masses, one (12×5 cm) over the trochanteric region, and the other (3×2 cm) over the distal end of the humerus. MRI confirmed calcified intramuscular lesions (figure 1). Histopathological examination …
Contributors EM, GB and TG were in charge of the patient. EM wrote the manuscript with support from GS, RC and TG. RC supervised the project. All authors provided critical feedback and helped shape the manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Parental/guardian consent obtained.
Provenance and peer review Not commissioned; externally peer reviewed.
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