Nice work! Since in this question you could choose multiple answers, most of you got major causes of MPGN pattern of injury. Besides parvovirus B19( classically collapsing FSGS), rest all of the above diseases cause a MPGN pattern of injury or have been documented cases of MPGN with the diseases.
I think a good article for everyone to read is H.Renke's Kidney International Forum from many years ago.
Whenever you see double contouring and MPGN pattern of injury, THINK OF secondary causes and rule it out before you call it IDIOPATHIC.
The classic four categories that you want to make sure you don't miss are:
Immune complex disease( your MPGN I, II and III and all your autoimmune disease such as SLE)
Chronic Infections( Hep virus,Cryo, malaria, endocarditis)
Chronic Thrombotic Microangiopathies( APLAS, Chronic HUS/TTP, radiation nephropathy, bone marrow transplant nephropathy, sickle cell)
Paraprotein deposition diseases ( includes MGUS)