Normal CT (with labels)
From the case:
CT foot and ankle sagittal - labeling questions
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The labeled structures are (excluding the correct side):
- medial sesamoid of hallux
- first distal phalanx
- first interphalangeal joint
- head of first metatarsal
- first proximal phalanx
- first metatarsophalangeal joint
- lateral sesamoid of hallux
- neck of first metatarsal
- shaft of first metatarsal
- medial malleolus (of tibia)
- base of first metatarsal
- first tarsometatarsal joint
- medial process of talus
- sustentaculum tali
- medial cuneiform
- middle facet of talus
- middle subtalar joint
- navicular
- head of talus
- medial process of calcaneal tuberosity
- neck of talus
- posterior process of talus
- second distal interphalangeal joint
- talonavicular joint
- intermediate cuneiform
- posterior facet of talus
- anterior facet of talus
- precalcaneal (Kager's) fat pad
- base of second metatarsal
- sinus tarsi
- tibiotalar joint
- calcaneal (Achilles) tendon
- second tarsometatarsal joint
- posterior facet of calcaneum
- talar dome
- calcaneal sulcus
- third tarsometatarsal joint
- calcaneal tuberosity
- talar sulcus
- lateral cuneiform
- third middle phalanx
- lateral process of calcaneal tuberosity
- posterior malleolus (of tibia)
- cubocuneiform joint
- anterior process of calcanuem
- tibial plafond
- posterior subtalar joint
- third proximal interphalangeal joint
- calcaneocuboid joint
- base of fourth metatarsal
- fourth tarsometatarsal joint
- tubercle of cuboid
- cuboid
- fifth tarsometatarsal joint
- fourth proximal phalanx
- lateral process of talus
- fourth distal phalanx
- base of fifth metatarsal
- tubercle of fifth metatarsal
- shaft of fibula
- shaft of fifth metatarsal
- lateral malleolus (of fibula)
- fifth metatarsophalangeal joint
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The same normal foot and ankle CT without labels for reference.
Case Discussion
The labeled structures are (excluding the correct side):
- medial sesamoid of hallux
- first distal phalanx
- first interphalangeal joint
- head of first metatarsal
- first proximal phalanx
- first metatarsophalangeal joint
- lateral sesamoid of hallux
- neck of first metatarsal
- shaft of first metatarsal
- medial malleolus (of tibia)
- base of first metatarsal
- first tarsometatarsal joint
- medial process of talus
- sustentaculum tali
- medial cuneiform
- middle facet of talus
- middle subtalar joint
- navicular
- head of talus
- medial process of calcaneal tuberosity
- neck of talus
- posterior process of talus
- second distal interphalangeal joint
- talonavicular joint
- intermediate cuneiform
- posterior facet of talus
- anterior facet of talus
- precalcaneal (Kager's) fat pad
- base of second metatarsal
- sinus tarsi
- tibiotalar joint
- calcaneal (Achilles) tendon
- second tarsometatarsal joint
- posterior facet of calcaneum
- talar dome
- calcaneal sulcus
- third tarsometatarsal joint
- calcaneal tuberosity
- talar sulcus
- lateral cuneiform
- third middle phalanx
- lateral process of calcaneal tuberosity
- posterior malleolus (of tibia)
- cubocuneiform joint
- anterior process of calcanuem
- tibial plafond
- posterior subtalar joint
- third proximal interphalangeal joint
- calcaneocuboid joint
- base of fourth metatarsal
- fourth tarsometatarsal joint
- tubercle of cuboid
- cuboid
- fifth tarsometatarsal joint
- fourth proximal phalanx
- lateral process of talus
- fourth distal phalanx
- base of fifth metatarsal
- tubercle of fifth metatarsal
- shaft of fibula
- shaft of fifth metatarsal
- lateral malleolus (of fibula)
- fifth metatarsophalangeal joint