Predominantly septal panniculitis with vasculitis
Type Etiology Pathogenesis Reference Type Etiology Pathogenesis Reference Type Etiology Pathogenesis Reference Type Etiology Pathogenesis Reference
Cutaneous polyarteritis nodosa Ideopathic, Group A β hemolytic Streptococcus infection, hepatitis B infection, inflammatory bowel disease Type III hypersensitivity reaction, medium-sized vessel vasculitis (184)
Erythema nodosum leprosum Mycobacterium leprae Type 2 reaction Type II hypersensitivity reaction, small-sized vessel vasculitis (185)
Leukocytoclastic vasculitis Infection, Inflammatory disease, medication or drugs Type III hypersensitivity reaction, small-sized vessel vasculitis (186)
Superficial thrombophlebitis Thrombosis in superficial vein, trauma, venos statis, malignancy, pregnancy, Inflammation of superficial veins, large-sized vein vasculitis (187)