Richner<unk> , also called Richner Syndrome and<unk> , is a rare autosomal recessive disorder due to a deficiency in enzyme tyrosine amino transferase. It is named for Ernst<unk>  and 
Hermann Richner, who independently reported it in 1947 and 1938, respectively.
Hanhart syndrome
Smith-Magenis syndrome
Landau-Kleffner syndrome
Rabson-Mendenhall syndrome
Grahmann's syndrome
Wolcott-Rallison syndrome
Kostmann syndrome
Turner syndrome