<prompt> Non pitting edema is seen in?Congestive cardiac failureMyxedemaLiver failureRenal failure  <response>: ANSWER: B MyxedemaREF: Harrisons 18th ed chapter 36The edema is non pitting in myxedema because of deposition of hyaluronic acidCauses of non pitting pedal edema:MyxedemaHyperthyroidism pretibial myxedema secondary to Graves disease,FilarisasisLymphedemaLipoedema 