Question- Growing left upper arm mass
22-year-old Asian male presenting with concerns of a sporadic non-painful mass on the left upper arm. There is no history of trauma, and the patient is otherwise in good health with no past medical history, current medications, or known allergies. Physical exam revealed a non-mobile mass palpable along the lateral mid-humerus with no superficial skin changes. Laboratory tests noted eosinophilia. What is your diagnosis? (Figs. 1, 2, 3, and 4).
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The diagnosis can be found at https://doi.org/10.1007/s00256-022-04199-y
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Perez, O.F., Warburton, C., Cassidy, D.P. et al. Test yourself: Question- Painless left upper extremity mass. Skeletal Radiol 52, 779–782 (2023). https://doi.org/10.1007/s00256-022-04198-z
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DOI: https://doi.org/10.1007/s00256-022-04198-z