1. BASIC CHEST RADIOLOGY 3

2. Diffuse disease of the lung is most marked in the mid and lower zones, as this is where the x- rays are going through most lung volume.
Some diseases have an upper lobe preponderance.

3. TB
RADIATION-CONFINED TO SIDE OD RADIATION FIELD
ALVEOLITIS-EXTRINSIC ALLERGIC MORE MID ZONE
ANKYLOSING SPONDYLITIS
SARCOIDOSIS
SILICOSIS-TOGETHER WITH PMF
HISTIOCYTOSIS

4. WIDESPREAD INTERSTITIAL SHADOWING IS USUALLY FIBROSIS and associated with volume loss.
Main reason for normal/large volume with fibrosis is usually COPD
A few rare causes are HISTIOCYTOSIS,NEUROFIBROMATOSIS, AND LLYMPHANGIOMYOMATOSIS
OTHER CAUSES
COLLAGEN VASCULAR D
ALVEOLITIS UIP
RADIATION
DRUGS
SICKLE, SCLERODERMA

5. COLLAPSE-VOLUME LOSS
EFFUSION-OFTEN WITH PASSIVE COLLAPSE AND NO SHIFT
PNEUMONIA
PNEUMONECTOMY

7. REVERSE PULMONARY OEDEMA
PULMONARY EOSINOPHILIA
SARCOID
PULMONARY CONTUSION

8. MULTIPLE CALCIFIED PLEURAL PLAQUES
ASBESTOS PLAQUES-NOT ASBESTOSIS

9. UNILATERAL PLEURAL CALCIFICATIONTB
HAEMATOMA

10. ANTERIOR MEDIASTINAL MASS
ALWAYS INCLUDE TUMOUR AND ANEURYSM IN ALL DIFFERENTIAL OF MEDIASTINAL MASS.THEN THINK ANANTOMICALLY
TUMOUR
TERRATODERMOID-ALSO SEMINOMA
THYMIC TUMOUR
THYROID

11. ANEURYSM OF AORTIC ARCH

12. MIDDLE MEDIASTINUM
LYMPH NODES
CYSTS-ENTERIC/BRONCHOGENIC

13. POSTERIOR MEDIASTINUM
NEUROGENIC
ABSCESS
EXTRAMEDULLARY HAEMOPOIESIS
METASTASE

14. RT CARDIOPHRENIC MASS
FAT PAD
PERICARDIAL CYST
MORGAGNI HERNIA