CT foot and ankle sagittal - labeling questions

Case contributed by Craig Hacking
Diagnosis not applicable

Normal CT (with labels)

Annotated image

The labeled structures are (excluding the correct side):

  1. medial sesamoid of hallux
  2. first distal phalanx
  3. first interphalangeal joint
  4. head of first metatarsal
  5. first proximal phalanx
  6. first metatarsophalangeal joint
  7. lateral sesamoid of hallux
  8. neck of first metatarsal
  9. shaft of first metatarsal
  10. medial malleolus (of tibia)
  11. base of first metatarsal
  12. first tarsometatarsal joint
  13. medial process of talus
  14. sustentaculum tali
  15. medial cuneiform
  16. middle facet of talus
  17. middle subtalar joint
  18. navicular
  19. head of talus
  20. medial process of calcaneal tuberosity
  21. neck of talus
  22. posterior process of talus
  23. second distal interphalangeal joint
  24. talonavicular joint
  25. intermediate cuneiform
  26. posterior facet of talus
  27. anterior facet of talus
  28. precalcaneal (Kager's) fat pad
  29. base of second metatarsal
  30. sinus tarsi
  31. tibiotalar joint
  32. calcaneal (Achilles) tendon
  33. second tarsometatarsal joint
  34. posterior facet of calcaneum
  35. talar dome
  36. calcaneal sulcus
  37. third tarsometatarsal joint
  38. calcaneal tuberosity
  39. talar sulcus
  40. lateral cuneiform
  41. third middle phalanx
  42. lateral process of calcaneal tuberosity
  43. posterior malleolus (of tibia)
  44. cubocuneiform joint
  45. anterior process of calcanuem
  46. tibial plafond
  47. posterior subtalar joint
  48. third proximal interphalangeal joint
  49. calcaneocuboid joint
  50. base of fourth metatarsal
  51. fourth tarsometatarsal joint
  52. tubercle of cuboid
  53. cuboid
  54. fifth tarsometatarsal joint
  55. fourth proximal phalanx
  56. lateral process of talus
  57. fourth distal phalanx
  58. base of fifth metatarsal
  59. tubercle of fifth metatarsal
  60. shaft of fibula
  61. shaft of fifth metatarsal
  62. lateral malleolus (of fibula)
  63. fifth metatarsophalangeal joint

Normal CT (no labels)

ct

The same normal foot and ankle CT without labels for reference.

Case Discussion

The labeled structures are (excluding the correct side):

  1. medial sesamoid of hallux
  2. first distal phalanx
  3. first interphalangeal joint
  4. head of first metatarsal
  5. first proximal phalanx
  6. first metatarsophalangeal joint
  7. lateral sesamoid of hallux
  8. neck of first metatarsal
  9. shaft of first metatarsal
  10. medial malleolus (of tibia)
  11. base of first metatarsal
  12. first tarsometatarsal joint
  13. medial process of talus
  14. sustentaculum tali
  15. medial cuneiform
  16. middle facet of talus
  17. middle subtalar joint
  18. navicular
  19. head of talus
  20. medial process of calcaneal tuberosity
  21. neck of talus
  22. posterior process of talus
  23. second distal interphalangeal joint
  24. talonavicular joint
  25. intermediate cuneiform
  26. posterior facet of talus
  27. anterior facet of talus
  28. precalcaneal (Kager's) fat pad
  29. base of second metatarsal
  30. sinus tarsi
  31. tibiotalar joint
  32. calcaneal (Achilles) tendon
  33. second tarsometatarsal joint
  34. posterior facet of calcaneum
  35. talar dome
  36. calcaneal sulcus
  37. third tarsometatarsal joint
  38. calcaneal tuberosity
  39. talar sulcus
  40. lateral cuneiform
  41. third middle phalanx
  42. lateral process of calcaneal tuberosity
  43. posterior malleolus (of tibia)
  44. cubocuneiform joint
  45. anterior process of calcanuem
  46. tibial plafond
  47. posterior subtalar joint
  48. third proximal interphalangeal joint
  49. calcaneocuboid joint
  50. base of fourth metatarsal
  51. fourth tarsometatarsal joint
  52. tubercle of cuboid
  53. cuboid
  54. fifth tarsometatarsal joint
  55. fourth proximal phalanx
  56. lateral process of talus
  57. fourth distal phalanx
  58. base of fifth metatarsal
  59. tubercle of fifth metatarsal
  60. shaft of fibula
  61. shaft of fifth metatarsal
  62. lateral malleolus (of fibula)
  63. fifth metatarsophalangeal joint

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