micronodular(miliary)disease tb histoplasmosis chicken box sarcoidosis lch pneumoconiosis ...
TRANSCRIPT
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Dr Ahmed Refaey , FRCR
Differential diagnosis of chest diseases
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Micronodular(miliary)disease
TB Histoplasmosis Chicken box Sarcoidosis LCH Pneumoconiosis Alveolar microlithiasis Metastasis
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Septal thickening
Beaded / nodular * lymphangitic carcinomatosa * sarcoidosis * silicosis
Smooth * lymphangitisc carcinomatosis * pulmonary edema * alveolar proteinosis
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Bilateral perihilar air-space disease
Pulmonary edema Pulmonary hemorrhage Alveolar proteinosis PCP
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Acute alveolar infiltrate
Pulmonary edema Pneumonia Pulmonary hemorrhage Aspiration
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Chronic alveolar disease
Alveolar cell carcinoma Alveolar sarcoidosis Lymphoma Alveolar proteinosis
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Unilateral hyperlucent lung Obstructive emphysema Mcleoid syndrome ( Swyer James
syndrome) Pneumothorax Pulmonary embolism Bullous disease Air trapping e.g. FB , mass Poland syndrome
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Multiple lung nodules (macronodules)
Metastasis Wegner’s granulomatosis Rheumatoid n nodules AVMs Septic emboli
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Small cavitating lung lesions Septic emboli Rheumatoid nodules Wegner’s granulomatosis Sq. or transitional cell ca metastasis
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Upper lober disease( CASSET P )
Cystic fibrosis Ankylosing spondylitis Sarcoidosis Silicosis Esinophilic granuloma PCP
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Basilar interstitial lung disease ( BADASS )
Bronchiectasis Aspiration Drugs / DIP-UIP Asbestosis Sickle cell disease Scleroderma
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Masses with air bronchogram Lymphoma Alveolar cell carcinoma Pseudolymphoma ( maltoma )
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Anterior mediastinal mass
Thymic tumors Substernal Thyroid LNs Germ cell tumor
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Middle mediastinal mass
LNs Aneurysm Esophageal duplication Bronchogenic cyst
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Posterior mediastinal mass Neurogenic tumors Paraspinal hematoma Paraspinal abscess Extraskeletal hematopoiesis LNs enlargement Lateral meningeocele
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Opacified hemithorax
Atelectasis Pneumonia Pleural effusion Post pneumonectomy
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Pneumomediastinum
Ruptured esophagus Ruptured trachea / bronchus Iatrogenic Broncheal asthma pneumoperitoneum
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Pleural calcification
Old TB empyema Asbestos exposure Hemithorax
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Cardiopherenic angle mass
Pericardial cyst Diaphragmatic hernia ( Morgagni ) Lung sequestration Pericardial fat bad
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Unilateral pulmonary edema Aspiration Disease in other lung e.g. COPD Postural Rapid expansion pulmonary edema “ Look for ICT”
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Long segment tracheal narrowing
Tracheopathia osteoplastica Tracheo-broncheal amyloidosis Wegner’s granulomatosis Intubation injury Tracheobronchomalacia Relapsing polychondritis Papillomatosis ( extensive )
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Peripheral distributed lung disease
Esinophilic pneumonia --- upper lobes
BOOP ----- lower lobes Hypersensitivity pneumonitis Multiple infarcts DIP Alveolar cell carcinoma
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Bronchiectasis
CT criteria of bronchiectasis
1- lack of tapering of bronchi2-internal diameter of bronchus larger
than the adjacent artery3- bronchi are visible within 1 cm of
pleura4- mucus-filled , dilated bronchi
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Bronchiectasis
Chronic airway infection Pulmonary fibrosis –traction bronchiectasis ABPA ------- central
bronchiectasis Cystic fibrosis ------- apical bronchiectasis Mounier-Kuhn syndrome –
tracheobronchomegally Kartagner syndrome --- situs inversus +
sinusitis
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Mounier-Kuhn syndrome
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ABPA
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Cystic fibrosis
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Kartagener’s syndrome
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Dilated esophagus
Scleroderma Achalasia Obstructing tumor Drugs ( atropine) Surgury ( gastric pull-up)