DDx of Subepidermal Vesicular Dermatitis

 

    • Little inflammation:
      • Epidermolysis bullosa
      • Porphyria
      • Pseudoporphyria
      • Bullous pemphigoid (cell-poor type)
      • Burns
      • Toxic epidermal necrolysis
      • Bullae associated with diabetes
      • Blisters overlying scars
      • Bullous amyloidosis
      • Bullous dermatosis of hemodialysis
    • Lymphocytic inflammation:
      • Erythema multiforme
      • Fixed drug eruption
      • Lichen planus pemphigoides
      • Polymorphous light eruption
      • Bullous mycosis fungoides
      • Bullous fungal infections
    • Eosinophilic inflammation:
      • Bullous pemphigoid
      • Epidermolysis bullosa acquisita
      • Pemphigoid gestationis
      • Arthropod bites
      • Drug reactions
      • Herpes (pemphigoides) gestationis
    • Neutrophilic inflammation:
      • Dermatitis herpetiformis
      • Linear IgA bullous dermatosis
      • Cicatricial pemphigoid and localized cicatricial pemphigoid
      • Pustular vasculitis
      • Bullous lupus erythematosus
      • Sweet’s syndrome
      • Epidermolysis bullosa acquisita
      • Erysipelas
      • Bullous urticaria
    • Mast cells:
      • Bullous mastocytosis
    • Miscellaneous:
      • Drug overdose-related bullae
      • PUVA-induced bullae
      • Etretinate-induced bullae

 

 

References:

    • Barnhill 2004