Pulmonology Book


  • Pulmonary Bleb



Pulmonary Bleb

Aka: Pulmonary Bleb, Lung Bleb, Lung Bullae, Pulmonary Bullae
  1. Definitions
    1. Pulmonary Bleb
      1. Small (<1-2 cm), thin walled (<1 mm) air containing spaces within the lung
    2. Pulmonary Bullae
      1. Larger (>1-2 cm) air containing spaces within the lung
      2. A Pulmonary Bulla may be a coalescence of Pulmonary Blebs
  2. Pathophysiology
    1. Blebs and Bullae form as a result of subpleural alveolar rupture
  3. Risk Factors
    1. Tobacco Abuse
    2. Thin Patient
    3. COPD
  4. Differential Diagnosis
    1. Pneumatocele (post-Pneumonia)
    2. Pneumothorax
    3. Cystic Bronchiectasis
    4. Cavitary Lung Disease
    5. Cystic Lung Disease
      1. Lymphangioleiomyomatosis (LAM)
      2. Pulmonary Langerhans Cell Histiocytosis (PLCH)
      3. Birt-Hogg-Dube Syndrome (BHD)
      4. Lymphoid Interstitial Pneumonia (LIP)
  5. Complications
    1. Pneumothorax
    2. Bullae secondary infection
    3. Giant Bullous Emphysema (Vanishing Lung Syndrome)
      1. Large bullae, in some cases filling the entire hemithorax
      2. May impair lung function
  6. Resources
    1. Lung Bleb (Radiopaedia)
      1. https://radiopaedia.org/articles/pulmonary-bleb?lang=us
  7. References
    1. Kumar and Kotloff (2018) Diagnostic Approach to the Adult with Cystic Lung Disease, UpToDate, accessed 8/5/2019
    2. Collins and Stern (2008) Chest Radiology, Wolters Kluwer, Philadelphia, p. 234-5

Bulla of lung (C0241982)

Concepts Disease or Syndrome (T047)
SnomedCT 162975005, 278976004
Italian Bolla del polmone
Japanese 肺胞内嚢胞, ハイホウナイノウホウ
English Bullae, lung bleb, bulla lungs, bullae lung, bleb lungs, blebs lungs, lung blebs, blebs lung, lung bulla, bulla of lung, bullae lungs, lung bullae, pulmonary bulla, bleb lung, bulla lung, Pulmonary bulla, Emphysematous bulla of lung, Bulla of lung, Bulla of lung (finding), bulla; lung, lung; bulla
Czech Plicní bula
Hungarian Tüdő bulla
Dutch bulla; long, long; bulla, longblaas
Spanish bulla pulmonar (hallazgo), bulla pulmonar, Bulla pulmonar
Portuguese Bolha pulmonar
French Bulle pulmonaire
German Pulmonalblase
Derived from the NIH UMLS (Unified Medical Language System)

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