ELEVATION OF THE DIAPHRAGM
- In most people the diaphragm in the mid lung field lies at the level of the fifth or sixth anterior rib interspace
- CAUSES OF BILATERAL SYMMETRICAL ELEVATION OF THE DIAPHRAGM
| Supine position |
| Poor inspiration |
| Obesity |
| Pregnancy |
| Abdominal distension (ascites, intestinal obstruction, abdominal mass) |
| Diffuse pulmonary fibrosis |
| Lymphangitis carcinomatosa |
| Disseminated lupus erythematosus |
| Bilateral basal pulmonary emboli |
| Painful conditions (after abdominal surgery) |
| Bilateral diaphragmatic paralysis |
- CAUSES OF UNILATERAL ELEVATION OF THE DIAPHRAGM
| Posture—lateral decubitus position (dependent side) |
| Gaseous distension of stomach or colon |
| Dorsal scoliosis |
| Pulmonary hypoplasia |
| Pulmonary collapse |
| Phrenic nerve palsy |
| Eventration |
| Pneumonia or pleurisy |
| Pulmonary thromboembolism |
| rib fracture and other painful conditions |
| Subphrenic infection |
| Subphrenic mass |
REF:
Adam: Grainger & Allison's Diagnostic Radiology, 5th
ed.
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