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

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