OPG - labeling questions

Case contributed by Craig Hacking
Diagnosis not applicable

Normal OPG (with labels)

Annotated image

The labeled structures are (excluding the correct side):

  1. mandibular canal
  2. coronoid process
  3. condylar neck
  4. mandibular notch
  5. condyle
  6. pterygomandibular raphe
  7. articular eminence of temporal bone
  8. body
  9. temporomandibular joint
  10. mental foramen
  11. ramus
  12. sphenoid sinus
  13. pterygomaxillary fissure
  14. bony nasal septum
  15. nasal cavity
  16. zygomatic arch
  17. mandibular foramen
  18. mental tubercle
  19. greater cornu of the hyoid bone
  20. anterior nasal spine
  21. styloid process of the temporal bone
  22. body of the hyoid bone
  23. base of tongue
  24. lobule of the pinna
  25. epiglottis
  26. soft palate
  27. vallecula
  28. hard palate
  29. oroharynx
  30. floor of maxillary antrum
  31. cervical verterbal body
  32. OPG bite block

Normal OPG (without labels)

x-ray

The same normal OPG without labels for reference.

Case Discussion

The labeled structures are (excluding the correct side):

  1. mandibular canal
  2. coronoid process
  3. condylar neck
  4. mandibular notch
  5. condyle
  6. pterygomandibular raphe
  7. articular eminence of temporal bone
  8. body
  9. temporomandibular joint
  10. mental foramen
  11. ramus
  12. sphenoid sinus
  13. pterygomaxillary fissure
  14. bony nasal septum
  15. nasal cavity
  16. zygomatic arch
  17. mandibular foramen
  18. mental tubercle
  19. greater cornu of the hyoid bone
  20. anterior nasal spine
  21. styloid process of the temporal bone
  22. body of the hyoid bone
  23. base of tongue
  24. lobule of the pinna
  25. epiglottis
  26. soft palate
  27. vallecula
  28. hard palate
  29. oroharynx
  30. floor of maxillary antrum
  31. cervical verterbal body
  32. OPG bite block

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