An Unusual Case of Giant Bullous Disease

Our plain-English summary of An Unusual Case of Giant Bullous Disease, by K. Yoshino, J. Ioanitescu, H. Zhang, et al (CHEST Pulmonary, 2025).

The study

• Authors: K. Yoshino, J. Ioanitescu, H. Zhang, T. Endicott-Yazdani, S.K. Mathai
• Journal: CHEST Pulmonary
• Published: 2025;3(1):100121
• Type of article: Case report
• Read it: PubMed · Publisher · Free full text

Abstract

A 50-year-old African American woman presented to the lung transplant clinic for evaluation after experiencing gradually worsening dyspnea over the preceding 5 years. She had been diagnosed with COPD by another pulmonologist. Since her diagnosis 10 years before presentation, the patient had been on continuous supplemental oxygen therapy at 2 L/min. Her treatment regimen included a once daily combination inhaler (a corticosteroid and an ultra-long-acting ß-adrenoceptor agonist) along with an albuterol inhaler used as needed. The patient's dyspnea limited her ability to walk half a block, and she often required a few minutes to recover after these efforts. Her symptoms were partially alleviated by use of her albuterol inhaler. In addition to dyspnea, the patient reported a nonproductive cough that was exacerbated by activity and relieved by rest. The patient's medical history included OSA requiring positive airway pressure therapy and a hospitalization for respiratory distress due to a COVID-19 infection 12 months before presentation. She had a < 10-pack-year smoking history and childhood exposure to secondhand smoke. She had no known exposure to organic dusts or asbestos.

© 2024 The Authors.

In plain English

This article was a case report about one patient: a 50-year-old African American woman seen at a lung transplant clinic. Another pulmonologist had diagnosed her with COPD. The article stated that she had no known exposure to organic dusts or asbestos, and asbestos was not otherwise discussed. A CT scan showed large bullae (air-filled spaces) in both lungs. Breathing tests showed obstruction, with an FEV1/FVC ratio of 0.59 and a residual volume of 3.69 L (206% predicted). The authors noted that her disease seemed out of proportion to her reported smoking history. Surgeons removed bullae from the right upper lobe. The removed tissue showed pleural fibrosis and nonnecrotizing granulomas, and stains for fungal organisms were negative. The diagnosis was bullous sarcoidosis. She also received immunosuppression with methotrexate and systemic steroids. After the bullectomy and this treatment, her FEV1/FVC ratio was 0.71 and her FEV1 was 1.8 L (81% predicted), and she no longer needed oxygen at rest. The authors concluded that surgical bullectomy can potentially be both diagnostic and therapeutic in bullous sarcoidosis.

We wrote this plain-English summary from the full article with the help of AI, and a second AI model checked each sentence against the article. It is not the authors' wording; the abstract and the article are their own account.

What the study did and found

• Design: case report (single patient)
• Who was studied: one 50-year-old African American woman evaluated at a lung transplant clinic (authors at Baylor University Medical Center, Dallas, TX), previously diagnosed with COPD
• Exposure: No asbestos exposure was studied; the article states the patient had no known exposure to organic dusts or asbestos
• Main results:
  • Chest CT showed large bullae in both lungs
  • Before surgery, the patient's FEV1/FVC ratio was 0.59
  • Before surgery, the patient's residual volume was elevated at 3.69 L (206% predicted)
  • The patient's disease severity was out of proportion to her reported smoking history
  • The resected lung tissue showed pleural fibrosis and well-formed nonnecrotizing granulomas
  • The tissue samples were negative for fungal organisms
  • The diagnosis was bullous sarcoidosis
  • After bullectomy and immunosuppression with methotrexate and systemic steroids, the patient's imaging and pulmonary function testing improved
  • After bullectomy, the patient's FEV1/FVC ratio was 0.71
  • After bullectomy, the patient's FEV1 was 1.8 L (81% predicted) and her FVC was 2.55 L (87% predicted)
  • The patient no longer required oxygen at rest
• The authors' conclusion: The authors concluded that surgical bullectomy can potentially be diagnostic and therapeutic in cases of bullous sarcoidosis

Topics

Medical terms in this study, explained in our Lexicon: Lung Transplant, Dyspnea, COPD, Supplemental Oxygen.

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