Bullous Pemphigoid
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Pathogenesis: Type II hypersensitivity?
- Dogs and horses
- Involves oral cavity, mucocutaneous junctions, groin and axilla
- Subepidermal vesicles and bullae
- Antibodies bound to basement membrane
- Grossly:
- Similar to Pemphigus vulgaris
- Microscopically:
- Bullae containing fibrin, neutrophils or eosinophils
- Basement membrane forms floor of bullae and roof is lined with basal cells
- Bullae may rupture -> ulcers