title: Vasculitis with probable familial C2 deficiency. (Case 1). Systemic lupus erythematosus with familial C2 deficiency. (Case 2).
mesh_terms: D000328:Adult; D003175:Complement C2 / Q000172:deficiency*; D005260:Female; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000150:complications* / Q000276:immunology; D008297:Male; D008875:Middle Aged; D012871:Skin Diseases / Q000150:complications; D014657:Vasculitis / Q000150:complications* / Q000276:immunology
chemical_list: D003175:Complement C2