small-bowel volvulus . diffuse cerebral injury deep sulcus sign boot shaped heart ivory vertebra polka-dot sign crazy paving sign metastasis prostate pneumoperitoneum .naclerio’s v sign hemangioma crohn disease hypoxia empyema or an exudative effusion air creascent sign ulcerative colitis inflammatory bowel disease cvt pneumothorax pulmonary alveolar proteinosis
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