ArticleBMC pulmonary medicine2023
Progression of pulmonary cysts in Birt-Hogg-Dubé syndrome: longitudinal thoracic computed tomography study with quantitative assessment.
Article in BMC pulmonary medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- The prevalence of spontaneous pneumothorax in patients with BHD syndrome: a systematic review and meta-analysis.Orphanet journal of rare diseases · 2025Pooled it
- Experience in Molecular Genetic Diagnostics of Birt-Hogg-Dubé Syndrome: Characteristics of Identified Mutations and Evolution of the Methodological Approach.International journal of molecular sciences · 2026Article
- Hyperactivation of mTORC1 signaling mediates folliculin deficiency-induced pulmonary cyst formation in Birt-Hogg-Dubé syndrome.The Journal of clinical investigation · 2026Article
- Evolution of cystic lung disease in Birt-Hogg-Dubé syndrome: assessment of older patients.BMJ open respiratory research · 2025Article
- Trends in pulmonary function in patients with Birt-Hogg-Dubé syndrome: a retrospective cohort study.European clinical respiratory journal · 2025Article
- Recommendations on scuba diving in Birt-Hogg-Dubé syndrome.Expert review of respiratory medicineReview
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6 authors at 1 institution in 1 country.
Funding
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Abstract
backgroundBirt-Hogg-Dubé (BHD) syndrome is a rare autosomal dominant disorder characterized by fibrofolliculomas, renal tumors, pulmonary cysts, and recurrent pneumothorax. Pulmonary cysts are the cause of recurrent pneumothorax, which is one of the most important factors influencing patient quality of life. It is unknown whether pulmonary cysts progress with time or influence pulmonary function in patients with BHD syndrome. This study investigated whether pulmonary cysts progress during long-term follow-up (FU) by using thoracic computed tomography (CT) and whether pulmonary function declines during FU. We also evaluated risk factors for pneumothorax in patients with BHD during FU.
methodsOur retrospective cohort included 43 patients with BHD (25 women; mean age, 54.2 ± 11.7 years). We evaluated whether cysts progress by visual assessment and quantitative volume analysis using initial and serial thoracic CT. The visual assessment included the size, location, number, shape, distribution, presence of a visible wall, fissural or subpleural cysts, and air-cuff signs. In CT data obtained from a 1-mm section from 17 patients, the quantitative assessment was performed by measuring the volume of the low attenuation area using in-house software. We evaluated whether the pulmonary function declined with time on serial pulmonary function tests (PFT). Risk factors for pneumothorax were analyzed using multiple regression analysis.
resultsOn visual assessment, the largest cyst in the right lung showed a significant interval increase in size (1.0 mm/year, p = 0.0015; 95% confidence interval [CI], 0.42-1.64) between the initial and final CT, and the largest cyst in the left lung also showed significant interval increase in size (0.8 mm/year, p < 0.001, 95% CI; -0.49-1.09). On quantitative assessment, cysts had a tendency to gradually increase in size. In 33 patients with available PFT data, FEV1pred%, FEV1/FVC, and VCpred% showed a statistically significant decrease with time (p < 0.0001 for each). A family history of pneumothorax was a risk factor for the development of pneumothorax.
conclusionsThe size of pulmonary cysts progressed over time in longitudinal follow-up thoracic CT in patients with BHD, and pulmonary function had slightly deteriorated by longitudinal follow-up PFT.
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