Differential diagnosis Other causes of edema Hypothyroidism( myxedema,粘液水肿) periotibial region periorbital puffiness nonpitting Exogenous hyperadrenoncortism Pregnancy Estrogens o angioneuroticDifferential diagnosis Other Causes of Edema • Hypothyroidism (myxedema, 粘液水肿) periotibial region periorbital puffiness nonpitting • Exogenous hyperadrenoncortism • Pregnancy • Estrogens • angioneurotic