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Localized pretibial pemphigoid and pemphigoid nodularis
L Borradori1, C Prost, P Wolkenstein
1Clinique Dermatologique, Hôpital Saint-Louis, C.H.U. Saint Louis, Paris.
Journal of the American Academy of Dermatology
|November 1, 1992
Summary
This case study details a patient with localized pretibial pemphigoid who later developed a nodular variant, pemphigoid nodularis. Both conditions involved autoantibodies targeting the 230 kDa bullous pemphigoid antigen.
Area of Science:
- Dermatology
- Immunopathology
Background:
- Bullous pemphigoid is an autoimmune blistering disease targeting the dermal-epidermal junction.
- Localized variants, such as pretibial pemphigoid, present with specific clinical manifestations.
Observation:
- A 75-year-old woman initially presented with chronic blistering on her left leg, diagnosed as localized pretibial pemphigoid.
- After a 5-year remission, she developed a generalized prurigo nodularis-like eruption.
Findings:
- Immunofluorescence confirmed IgG and C3 deposition at the dermal-epidermal junction.
- Autoantibodies targeted the intracellular portion of hemidesmosomes and recognized the 230 kDa bullous pemphigoid antigen.
- The patient exhibited two distinct clinical presentations of bullous pemphigoid.
Implications:
- This case highlights unusual clinical presentations of bullous pemphigoid.
- It underscores the importance of recognizing varied morphologies in autoimmune blistering diseases.
- Understanding these variants aids in accurate diagnosis and management of bullous pemphigoid.