Q. The patient is a 5-year-old with cc of both feet dorsum edema, which started 3-4 months ago.p, E`mild splenomegaly. No fever.well nourished. Growth is normal.lab data.only moderate eosinophilia.mild microcytic anemia. Toxocara canis serology -ve. 2-month follow-up is normal. What is ddx, and what other investigations?