<prompt> Which one of the following is not the characteristic feature of kwashiorkor?Hair and skin changesMuscle wastingGrowth retardationPsychomotor changes  <response>: Muscles of the upper limb are wasted, but the lower extremities appear swollen. Muscle wasting is masked by well-preserved subcutaneous tissue and edema. Ref: Page 105, Ghai essential pediatrics; 6th edition 