Fibrinoid necrosis is not limited to the immune-mediated vasculitides; many pathologic processes can lead to areas of fibrinoid necrosis. In systemic lupus erythematosus, the dermis is often affected by fluid accumulation and inflammation around the small vessels in the skin, which may show prominent fibrinoid necrosis. Also it's seen in rheumatoid nodules with similar pathology. Also seen in Serum Sickness(Type III hypersensitivity reaction)[1]
References
^ abRobbins and Cotran pathologic basis of disease. Kumar, Vinay, Abbas, Abul K., Aster, Jon C., Perkins, James A. (Ninth ed.). Philadelphia, PA. 2014. ISBN9781455726134. OCLC879416939.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)