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Paraneoplastic pemphigus associated with bronchiolitis obliterans
M Takahashi1, Y Shimatsu, T Kazama
1Department of Dermatology, Niigata University School of Medicine, Niigata, Japan. michiyo@sbt.lamen.or.jp
Chest
|February 12, 2000
Summary
Paraneoplastic pemphigus (PNP) is an autoimmune blistering disease linked to cancer. This case highlights PNP’s potential to cause fatal bronchiolitis obliterans, emphasizing the need for respiratory monitoring.
Area of Science:
- Immunodermatology
- Pulmonology
- Oncology
Background:
- Paraneoplastic pemphigus (PNP) is a severe autoimmune blistering disease.
- It is characterized by autoantibodies targeting plakin proteins and desmogleins.
- PNP is frequently associated with underlying lymphoid malignancies.
Observation:
- A 36-year-old female with non-Hodgkin's lymphoma presented with PNP.
- She subsequently developed bronchiolitis obliterans, leading to respiratory failure and death.
- Autopsy revealed bronchiolar scarring consistent with bronchiolitis obliterans.
Findings:
- Autoantibodies against plakins, initially detected, disappeared after respiratory failure onset.
- This suggests a potential role for autoantibodies in respiratory epithelial inflammation.
- The disappearance indicates a complex immune response in PNP complications.
Implications:
- Bronchiolitis obliterans is a critical, potentially lethal complication of PNP.
- Clinicians must consider and monitor for respiratory complications in PNP patients.
- Preventing autoantibody-mediated respiratory injury is a key therapeutic goal in PNP management.