Chest CT Appearances

Cavitary Lesion CT Findings

• Gas-filled space
• Low CT attenuation (typically less than -100 HU)
• Can be seen within a pulmonary consolidation, mass, or nodule

Other Information About Cavitary Lesions

Etiology:

• Infectious disease
• Malignancies
• Rheumatologic disease
• Pulmonary embolism

Epidemiology:

• Can present at any age

Presentation:

• May be asymptomatic
• Cough
• Dyspnea

Prognosis:

• Prognosis depends on the cause of the cavitary lesion