Bronchial atresia
Primary peritoneal epithelioid mesothelioma
Pulmonary Langerhans cell histiocytosis
Tracheal carcinoma ex-pleomorphic adenoma
Cannabis ('bong') smoking induced pneumomediastinum and subcutaneous emphysema
Severe pectus excavatum (and bone metastases)
Alveolar hemorrhage and possible lymphocytic interstitial pneumonitis in systemic lupus erythematosus
Aspirated tooth
Cavitating lung cancer
Pulmonary metastases (thyroid cancer)
Achalasia
Right upper lobe collapse
Intercostal lung hernia
Pulmonary fibrosis in ankylosing spondylitis
Near drowning (pulmonary edema)
Flitting pneumonia
Thoracic plombage
Cutaneous lesion mimicking a lung mass
Pleural tuberculosis - mass
Pleural lipoma
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