Irestedt M, Månsson T, Svensson A.
DOI: 10.2340/0001555567265267

In a patient with total C2 deficiency and repeated respiratory infections a papulovesicular rash showed to be due to leukocytoclastic vasculitis. The patient´s brother also had a total deficiency of C2 but no clinical symptoms. HLA-investigation in both him and the proband showed the genotype commonly reported in cases with homozygous C2 deficiency. Their heterozygous mother and sister had slightly decreased C2 levels.