<unk>  are a group of conditions that on initial radiological studies might be confused with malignant lesions. Radiologists must be aware of these conditions in order to avoid misdiagnosing patients. Examples of such lesions are:<unk> l plaques, thoracic splenosis, catamenial pneumothorax,<unk> l pseudotumor, diffuse<unk> l thickening, diffuse pulmonary lymphangiomatosis and Erdheim–Chester disease.
Tumor-like disorders of the lung pleura
Hepatization of lungs
medical cause of Chylothorax
medical cause of Pleurisy
Focal lung pneumatosis
causes of Pleurisy
medical cause of Hemothorax
Malignant pleural effusion