BTD and Behcet disease: The second two most frequent genotypes, identified in eight patients with partial BD each (19.0%), were characterized by c.1368A>C (p.Gln456His) and c.1330G>C (p.Asp444His) on the BTD gene present in compound heterozygosity, both already reported in literature (8, 9); while the second one was characterized by the already known mutation c.511G>A (p.Ala171Thr) (11) and the c.1330G>C (p.Asp444His) variant in cis and c.1330G>C (p.Asp444His) present in the other allele.