CT chest lung window axial - labeling questions

Case contributed by Dr Craig Hacking
Annotated image

Normal CT chest lung windows (with labels)

The labeled structures are (excluding the correct side):

  1. cervical portion of trachea
  2. apical segment of RUL
  3. apicoposterior segment of LUL
  4. thoracic portion of trachea
  5. thoracic portion of esophagus
  6. left oblique (major) fissure
  7. apical segmental bronchus of RUL
  8. anterior segment of RUL
  9. right main bronchus
  10. posterior segmental bronchus of RUL
  11. apicoposterior segmental bronchus of LUL
  12. posterior segment of RUL
  13. anterior segmental bronchus of RUL
  14. right upper lobar bronchus
  15. carina
  16. anterior segmental bronchus of LUL
  17. anterior segment of LUL
  18. right oblique (major) fissure
  19. left main bronchus
  20. superior segment of RLL
  21. bronchus intermedius
  22. superior segment of LLL
  23. right horizontal (minor) fissure
  24. left upper lobar bronchus
  25. left lingular bronchus
  26. left lower lobar bronchus
  27. superior lingular segmental bronchus of LUL
  28. superior segmental bronchus of LLL
  29. right middle lobar bronchus
  30. superior segmental bronchus of RLL
  31. lateral segmental bronchus of RML
  32. right lower lobar bronchus
  33. superior lingular segment of LUL
  34. medial segmental bronchus of RML
  35. lateral segment of RML
  36. inferior lingular segmental bronchus of LUL
  37. anteromedial basal segmental bronchus of LLL
  38. lateral basal segmental bronchus of RLL
  39. medial basal segmental bronchus of RLL
  40. posterior basal segmental bronchus of LLL
  41. left oblique (major) fissure
  42. anterior basal segmental bronchus of RLL
  43. posterior basal segmental bronchus of RLL
  44. right oblique (major) fissure
  45. lateral basal segmental bronchus of LLL
  46. anteromedial basal segment of LLL
  47. medial segment of RML
  48. inferior lingular segment of LUL
  49. medial basal segment of RLL
  50. lateral basal segment of RLL
  51. anterior basal segment of RLL
  52. left oblique (major) fissure
  53. posterior basal segment of RLL
  54. accessory fissure
  55. posterior basal segment of LLL
  56. lateral basal segment of LLL
  57. anterior costophrenic recess
  58. lateral costophrenic recess
  59. posterior costophrenic recess
CT

Normal CT chest lung windows (without labels)

The same normal chest CT lung windows without labels for reference.

Case Discussion

The labeled structures are (excluding the correct side):

  1. cervical portion of trachea
  2. apical segment of RUL
  3. apicoposterior segment of LUL
  4. thoracic portion of trachea
  5. thoracic portion of esophagus
  6. left oblique (major) fissure
  7. apical segmental bronchus of RUL
  8. anterior segment of RUL
  9. right main bronchus
  10. posterior segmental bronchus of RUL
  11. apicoposterior segmental bronchus of LUL
  12. posterior segment of RUL
  13. anterior segmental bronchus of RUL
  14. right upper lobar bronchus
  15. carina
  16. anterior segmental bronchus of LUL
  17. anterior segment of LUL
  18. right oblique (major) fissure
  19. left main bronchus
  20. superior segment of RLL
  21. bronchus intermedius
  22. superior segment of LLL
  23. right horizontal (minor) fissure
  24. left upper lobar bronchus
  25. left lingular bronchus
  26. left lower lobar bronchus
  27. superior lingular segmental bronchus of LUL
  28. superior segmental bronchus of LLL
  29. right middle lobar bronchus
  30. superior segmental bronchus of RLL
  31. lateral segmental bronchus of RML
  32. right lower lobar bronchus
  33. superior lingular segment of LUL
  34. medial segmental bronchus of RML
  35. lateral segment of RML
  36. inferior lingular segmental bronchus of LUL
  37. anteromedial basal segmental bronchus of LLL
  38. lateral basal segmental bronchus of RLL
  39. medial basal segmental bronchus of RLL
  40. posterior basal segmental bronchus of LLL
  41. left oblique (major) fissure
  42. anterior basal segmental bronchus of RLL
  43. posterior basal segmental bronchus of RLL
  44. right oblique (major) fissure
  45. lateral basal segmental bronchus of LLL
  46. anteromedial basal segment of LLL
  47. medial segment of RML
  48. inferior lingular segment of LUL
  49. medial basal segment of RLL
  50. lateral basal segment of RLL
  51. anterior basal segment of RLL
  52. left oblique (major) fissure
  53. posterior basal segment of RLL
  54. accessory fissure
  55. posterior basal segment of LLL
  56. lateral basal segment of LLL
  57. anterior costophrenic recess
  58. lateral costophrenic recess
  59. posterior costophrenic recess
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Case information

rID: 63459
Published: 7th Oct 2018
Last edited: 14th Aug 2019
System: Chest
Inclusion in quiz mode: Included

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