<prompt> A young adult presents with proximal weakness of upper limbs, features of facial palsy and winging of scapula. The most likely diagnosis is:Facio-Scapulo-Humeral DystrophyLimb-Girdle DystrophyScapuloperoneal DystrophyDuchene Muscular Dystrophy  <response>: Answer is A Facio-Scapulo-Humeral Dystrophy: Weakness preferentially affecting the facial and shoulder girdle proximal weakness of upper limb together with winging of scapula in a young adult suggests a diagnosis of facio-scapulo-humeral dystrophy. Autosomal Dominant Positive Family History2 Abnormal gene 4q 4q35 deletion Childhood to young adulthood may be delayed to 5th decade Mild 1st CPK Normal Dystrophy 