A 23-year-old woman presented with a 1-month history of headache, syncope, weight gain. Physical examination revealed hypertrophic appearance of the thigh and calf muscles, and imaging of her thighs is shown. What is the diagnosis? a) Septic emboli b) Echinococcus granulosus c) Myxoid sarcoma d) Cysticercosis e) Toxoplasma gondii source: nejm.org