Jan 7, 2025 · Pulmonary bullae (singular bulla) are gas-containing cystic structures formed by confluent destroyed and dilated airspaces (distal to terminal bronchioles).

Jun 13, 2023 · CT. High-resolution chest CT is used to assess the extent of disease and determine suitability for lung volume reduction surgery. Features on CT include: bullae predominantly in the subpleural location; the size of bullae ranges from 1 to 20 cm in diameter, but most measure 2-8 cm 2

CT findings confirm the chest radiographic changes of a large air cavity in the right upper lobe with minor sparing of the anterior segment. Differential diagnosis is a loculated hydropneumothorax or air cyst (bulla) containing fluid.

Mar 6, 2024 · Blebs appear as small (<1 or 2 cm) subpleural air spaces, located most frequently at the lung apices. They have thin, almost imperceptible walls. Coronal MinIPs improve detection. Differential diagnosis. Key differential considerations include: bulla: thin wall (<1 mm), usually considered larger than blebs (>1 or 2 cm)

Mar 15, 2025 · CT is the modality of choice for detecting emphysema; HRCT chest is particularly effective. It should be noted, however, that there is a relatively poor correlation between autopsy-proven emphysema, pulmonary function test abnormalities and CT with 20% of pathology-proven cases not being evident on CT and 40% of patients with abnormal CT having ...

Dec 11, 2020 · Subpleural pulmonary bullae are a location-specific descriptive term to describe pulmonary bullae occurring in subpleural locations. Many are considered to represent regions of paraseptal emphysema where the emphysematous spaces are greater than 1 cm in diameter 1 .

CT study from one year ago confirms the right upper lobe bullae. Case Discussion Pulmonary bullae are focal regions of emphysema with no discernible wall which measure more than 1 cm in diameter.

It can sometimes be challenging to distinguish between bullae and a pneumothorax on a plain film. CT chest is often used in the emergency department to differentiate between pneumothorax and a large bullous before attempting a chest drain insertion.

Nov 8, 2024 · bulla: pleural/subpleural. honeycombing: subpleural stacks of cysts, typically 3-10 mm diameter with walls 1-3 mm in thickness. pneumatocele: usually transient cystic airspace within the lung, usually due to pneumonia or trauma. Pulmonary cysts have many minics:

Nov 23, 2024 · CT is superior to CXR and may show bronchial wall thickening, mucoid plugging, paraseptal emphysema with apical bullae. Treatment and prognosis. Substance use disorder and complications require treatment.