Eosinophilic myositis. An unusual cause of pseudotumor and eosinophilia.
D000293:Adolescent; D003937:Diagnosis, Differential; D004802:Eosinophilia / Q000473:pathology*; D006801:Humans; D008297:Male; D009132:Muscles / Q000473:pathology*; D009220:Myositis / Q000473:pathology*; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000473:pathology