Endobronchial lipomas are rare benign lesions arising from the adipose tissue in the submucosal layer of the bronchial wall.
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Epidemiology
Rare benign tumor with a possible male predilection.
Clinical presentation
Presenting symptoms include a cough, sputum, hemoptysis and dyspnea; however, patients may be asymptomatic.
Radiographic features
CT
- fat-density (HU of -40 to -120) lesion with smooth margins located in the bronchus
- there may be an associated lung collapse or distal airway dilatation, occasionally with infiltration or consolidation
Treatment and prognosis
Bronchoscopic resection is typically the first line of treatment for endobronchial lipoma.
Differential diagnosis
An endobronchial hamartoma may appear identical to an endobronchial lipoma on CT.
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