Health Dictionary Find a Doctor

Bronchiolitis obliterans

For patient information click here

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1],;Associate Editor(s)-in-Chief: Hadeel Maksoud M.D.[2]


Synonyms and keywords: Obliterative bronchiolitis; proliferative bronchiolitis; bronchiolitides; popcorn lung; popcorn lung disease; popcorn workers’ lung; diacetyl-induced bronchiolitis obliterans

Overview

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Hadeel Maksoud M.D.[2]

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Hereditary pancreatitis from Other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications, and Prognosis

Diagnosis

Diagnostic Study of Choice

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

X-ray

Echocardiography and Ultrasound

CT scan

MRI

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Primary Prevention

Secondary Prevention

References

Template:WH Template:WS

Historical Perspective

Overview

Bronchiolitis was first described in 1822, at the university of Minnesota. Bronchiolitis obliterans was first established as a separate pathological entity and fully described by Dr. Lange, a physician, in 1901. The recent popular trend of vaping, in particular flavored vapors, has brought about an increased incidence in irreversible bronchiolitis obliterans, also known as popcorn lung disease.

Historical Perspective

Discovery

  • Bronchiolitis was first described in 1822, at the university of Minnesota.[1]
  • Bronchiolitis obliterans was first established as a separate pathological entity and fully described by Dr. Lange, a physician, in 1901.
  • In 1941, LaDue was the first to discover the association between irritant fumes and the development of bronchiolitis obliterans.

Outbreaks

Bronchiolitis obliterans became prevalent amongst popcorn factory workers that inhaled diacetyl contained within the butter flavoring.

Impact on Cultural History

The recent popular trend of vaping, in particular flavored vapors, has brought about an increased incidence in irreversible bronchiolitis obliterans, also known as popcorn lung disease.

References

  1. Guerry-Force ML, Müller NL, Wright JL, Wiggs B, Coppin C, Pare PD, Hogg JC (March 1987). “A comparison of bronchiolitis obliterans with organizing pneumonia, usual interstitial pneumonia, and small airways disease”. Am. Rev. Respir. Dis. 135 (3): 705–12. doi:10.1164/arrd.1987.135.3.705. PMID 3826896.

Template:WH Template:WS

Classification

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Classification

There is no consensus classification scheme for bronchiolitis subtypes. One author describes four specific subtypes as follows: cellular bronchiolitis, respiratory bronchiolitis, bronchiolitis obliterans and bronchiolitis obliterans with intraluminal polyps (proliferative bronchiolitis obliterans).

References

Template:WH Template:WS

Pathophysiology

Please help WikiDoc by adding content here. It’s easy! Click here to learn about editing.

References

Template:WH Template:WS

Causes

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Causes

Bronchiolitis obliterans has many possible causes, including: collagen vascular disease, transplant rejection in organ transplant patients, viral infection (RSV, adenovirus, PCP, HIV, CMV), drug reaction, aspiration and complications of prematurity (bronchopulmonary dysplasia), and exposure to toxic fumes, including: diacetyl, sulfur dioxide, nitrogen dioxide, ammonia, chlorine, thionyl chloride, methyl isocyanate, hydrogen fluoride, hydrogen bromide, hydrogen chloride, hydrogen sulfide, phosgene, polyamide-amine dyes, and ozone. Additionally, the disorder may be idiopathic (without known cause). There are many industrial inhalants that are known to cause bronchiolitis.

References

Template:WH Template:WS

Differentiating Bronchiolitis obliterans from other Diseases

Differential diagnosis

Bronchiolitis obliterans must be differentiated from other cavitary lung lesions.

Causes of

lung cavities

Differentiating Features Differentiating radiological findings Diagnosis

confirmation

  • CXR and CT demonstrates cavities in the upper lobe of the lung
  • Sputum smear positive for acid-fast bacilli and nucleic acid amplification tests (NAAT) is used on sputum or any sterile fluid for rapid diagnosis and is positive for mycobacteria.
  • Any age group
  • Acute, fulminant life threating complication of prior infection
  • >100.4 °F fever, with hemodynamic instability
  • Worsening pneumonia-like symptoms
  • CBC is positive for causative organism
  • Children and elderly are at risk
  • Empyema appears lenticular in shape and has a thin wall with smooth luminal margins
  • Pulmonary nodules with cavities and infiltrates are a frequent manifestation on CXR
  • Elderly females of 40-50 age group
  • Manifestation of rheumatoid arthritis
  • Presents with other systemic symptoms including symmetric arthritis of the small joints of the hands and feet with morning stiffness are common manifestations
  • Pulmonary nodules with cavitation are located in the upper lobe (Caplan syndrome) on X-ray
  • On CXR bilateral adenopathy and coarse reticular opacities are seen
  • CT of the chest demonstrates extensive hilar and mediastinal adenopathy
  • Additional findings on CT include fibrosis (honeycomb, linear, or associated with bronchial distortion), pleural thickening, and ground-glass opacities.[7]
  • Common appearance on CT is patchy consolidation,often accompanied by ground-glass opacities and nodules.[11]
  • Exclusively afflicts smokers, with a peak age of onset of between 20 and 40 years
  • Clinical presentation varies, but symptoms generally include months of dry cough, fever, night sweats, and weight loss
  • Skin is involved in 80% of the cases, scaly erythematous rash is typical
  • Thin-walled cystic cavities are the usual radiographic manifestation, observed in over 50% of patients by either CXR or CT scans.[13]
  • Biopsy of the lung


References

  1. 1.0 1.1 Chaudhuri MR (1973). “Primary pulmonary cavitating carcinomas”. Thorax. 28 (3): 354–66. PMC 470041. PMID 4353362.
  2. Mouroux J, Padovani B, Elkaïm D, Richelme H (1996). “Should cavitated bronchopulmonary cancers be considered a separate entity?”. Ann. Thorac. Surg. 61 (2): 530–2. doi:10.1016/0003-4975(95)00973-6. PMID 8572761.
  3. Onn A, Choe DH, Herbst RS, Correa AM, Munden RF, Truong MT, Vaporciyan AA, Isobe T, Gilcrease MZ, Marom EM (2005). “Tumor cavitation in stage I non-small cell lung cancer: epidermal growth factor receptor expression and prediction of poor outcome”. Radiology. 237 (1): 342–7. doi:10.1148/radiol.2371041650. PMID 16183941.
  4. 4.0 4.1 Langford CA, Hoffman GS (1999). “Rare diseases.3: Wegener’s granulomatosis”. Thorax. 54 (7): 629–37. PMC 1745525. PMID 10377211.
  5. Lee KS, Kim TS, Fujimoto K, Moriya H, Watanabe H, Tateishi U, Ashizawa K, Johkoh T, Kim EA, Kwon OJ (2003). “Thoracic manifestation of Wegener’s granulomatosis: CT findings in 30 patients”. Eur Radiol. 13 (1): 43–51. doi:10.1007/s00330-002-1422-2. PMID 12541109.
  6. Baughman RP, Teirstein AS, Judson MA, Rossman MD, Yeager H, Bresnitz EA, DePalo L, Hunninghake G, Iannuzzi MC, Johns CJ, McLennan G, Moller DR, Newman LS, Rabin DL, Rose C, Rybicki B, Weinberger SE, Terrin ML, Knatterud GL, Cherniak R (2001). “Clinical characteristics of patients in a case control study of sarcoidosis”. Am. J. Respir. Crit. Care Med. 164 (10 Pt 1): 1885–9. doi:10.1164/ajrccm.164.10.2104046. PMID 11734441.
  7. Brauner MW, Grenier P, Mompoint D, Lenoir S, de Crémoux H (1989). “Pulmonary sarcoidosis: evaluation with high-resolution CT”. Radiology. 172 (2): 467–71. doi:10.1148/radiology.172.2.2748828. PMID 2748828.
  8. Murphy J, Schnyder P, Herold C, Flower C (1998). “Bronchiolitis obliterans organising pneumonia simulating bronchial carcinoma”. Eur Radiol. 8 (7): 1165–9. doi:10.1007/s003300050527. PMID 9724431.
  9. 9.0 9.1 Al-Ghanem S, Al-Jahdali H, Bamefleh H, Khan AN (2008). “Bronchiolitis obliterans organizing pneumonia: pathogenesis, clinical features, imaging and therapy review”. Ann Thorac Med. 3 (2): 67–75. doi:10.4103/1817-1737.39641. PMC 2700454. PMID 19561910.
  10. Cordier JF, Loire R, Brune J (1989). “Idiopathic bronchiolitis obliterans organizing pneumonia. Definition of characteristic clinical profiles in a series of 16 patients”. Chest. 96 (5): 999–1004. PMID 2805873.
  11. Lee KS, Kullnig P, Hartman TE, Müller NL (1994). “Cryptogenic organizing pneumonia: CT findings in 43 patients”. AJR Am J Roentgenol. 162 (3): 543–6. doi:10.2214/ajr.162.3.8109493. PMID 8109493.
  12. Suri HS, Yi ES, Nowakowski GS, Vassallo R (2012). “Pulmonary langerhans cell histiocytosis”. Orphanet J Rare Dis. 7: 16. doi:10.1186/1750-1172-7-16. PMC 3342091. PMID 22429393.
  13. Moore AD, Godwin JD, Müller NL, Naidich DP, Hammar SP, Buschman DL, Takasugi JE, de Carvalho CR (1989). “Pulmonary histiocytosis X: comparison of radiographic and CT findings”. Radiology. 172 (1): 249–54. doi:10.1148/radiology.172.1.2787035. PMID 2787035.

Template:WH Template:WS

Epidemiology and Demographics

Please help WikiDoc by adding content here. It’s easy! Click here to learn about editing.

References

Template:WH Template:WS

Risk Factors

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Risk Factors

Industrial workers who are at a greater risk for developing bronchiolitis obliterans:

  • Nylon-flock workers
  • Workers who spray prints onto textiles with polyamide-amine dyes
  • Battery workers who are exposed to thionyl chloride fumes
  • Workers at plants that use or manufacture flavorings, e.g. diacetyl butter-like flavoring

References

Template:WH Template:WS

Screening

Please help WikiDoc by adding content here. It’s easy! Click here to learn about editing.

References

Template:WH Template:WS

Natural History, Complications and Prognosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Natural History, Complications and Prognosis

This disease is irreversible and severe cases often require a lung transplant. Evaluation of interventions to prevent bronchiolitis obliterans relies on early detection of abnormal spirometry results or unusual decreases in repeated measurements.

References

Template:WH Template:WS

Diagnosis

Diagnosis

Diagnostic Criteria | History and Symptoms | Physical Examination | Laboratory Findings | Chest X ray | CT | MRI | Other Imaging Findings | Other Diagnostic Studies

Treatment

Treatment

Medical Therapy | Surgery | Primary Prevention | Secondary Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies

Case Studies

Case Studies

Case #1

Related Chapters


Template:WS

Looking for the patient version?

Back to the patient-friendly article

© 2026 MyEClinic – IFTM Institut für Telematik in der Medizin GmbH