1. CT heads diagnosing chest pathology? Whatever next?
Gary Holdsworth, Ruth Clarke 
Radiography 
Volume 17, Issue 4, Pages (November 2011)
DOI: /j.radi
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2. Figure 1 Small acute posterior right non-surgical SDH (arrow).
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3. Figure 2
Bilateral subcutaneous emphysema (arrow heads) within the temporal regions.
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4. Figure 3
Soft tissue (A) and bone images (B) at the level of the occipital condyles: extensive subcutaneous emphysema is shown outlining most of the major muscle groups on image B.
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5. Figure 4
Extensive subcutaneous emphysema is demonstrated surrounding the thorax.
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6. Figure 5
Gas can be seen outlining the kidneys and also the psoas muscles, indicating that it has tracked into the retroperitoneum.
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7. Figure 6
Soft tissue (A) and bone images (B). Extensive subcutaneous emphysema is shown within both orbits, overlying the face and also within both temporal regions (B).
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8. Figure 7
Soft tissue (A) and bone images (B) at the level of the foramen magnum: extensive subcutaneous emphysema is shown overlying the face, within the infra-temporal fossae and also related to both TMJs (B).
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9. Figure 8
Black arrow heads indicate gas within the pre-vertebral soft-tissues, also seen within the soft-tissues of the floor of the mouth (white arrow head).
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10. Figure 9
Arrow heads identify the edge of the lung parenchyma indicating a small right-sided pneumothorax.
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11. Figure 10
Arrow heads indentify a double edge to the heart border indicating a small pneumomediastinum.
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12. Figure 11
Head trauma. On image (A) red arrow heads identify significant bilateral petrous-temporal fractures and the white arrow points to small volume pneumocephalus. White arrow heads (both images) indicate subcutaneous emphysema.
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13. Figure 12
Facial trauma. Red arrow heads indicate fracture to the right frontal sinuses (image A) and to both maxillae (image C). White arrow heads (images B and C) indicate subcutaneous emphysema.
Radiography  , DOI: ( /j.radi )
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14. Figure 13
Iatrogenic (after line insertions into both the left external jugular and left subclavian veins). Soft tissue (A) and bone images (B) at the level of the pituitary fossa: subcutaneous emphysema (white arrow heads) is shown within the right orbit and within the left temporal region (B). Green arrows point to pneumocephalus within the pituitary fossa itself (B).
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15. Figure 14
Penetrating injury (stabbed with a pencil in the left eye). Soft tissue (A) and bone images (B) at the level of the orbits: subcutaneous emphysema (white arrow heads) is shown within the left orbit (B).
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16. Figure 15
Infection. Soft tissue (A) and bone images (B) at the level of the lateral ventricles showing a pyogenic abscess (with both intracranial and soft tissue involvement) related to a previous craniotomy. Gas can be seen both intracranially (green arrow head on A), and extracranially (white arrow head on B).
Radiography  , DOI: ( /j.radi )
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