CT head coronal - labeling questions

Case contributed by Dr Craig Hacking
Annotated image

Normal CT head (with labels)

The labeled structures are (excluding the correct side):

  1. frontal crest
  2. frontal sinus
  3. falx cerebri
  4. orbital gyrus
  5. straight gyrus (gyrus rectus)
  6. median longitudinal fissure
  7. crista galli
  8. inferior oblique muscle
  9. olfactory fossa
  10. globe
  11. superior rectus muscle
  12. inferior rectus muscle
  13. lateral rectus muscle
  14. temporalis muscle
  15. medial rectus muscle
  16. forceps minor
  17. orbital segment of the optic nerve
  18. genu of the corpus callosum
  19. superior sagittal sinus
  20. frontal horn of the lateral ventricle
  21. orbital apex
  22. superior orbital fissure
  23. optic canal
  24. inferior orbital fissure
  25. septum pellucidum
  26. head of the caudate nucleus
  27. cisternal segment of the optic nerve
  28. lesser wing of the sphenoid bone
  29. column of the fornix
  30. sylvian fissure
  31. optic chiasm
  32. clinoid segment of the internal carotid artery
  33. lentiform nucleus
  34. optic tract
  35. M1 segment of the middle cerebral artery
  36. anterior clinoid process
  37. body of the corpus callosum
  38. internal capsule
  39. body of the fornix
  40. posterior clinoid process
  41. body of the caudate nucleus
  42. mammillary bodies
  43. Meckel's cave
  44. body of the lateral ventricle
  45. third ventricle
  46. cavernous sinus
  47. sylvian fissure
  48. temporal horn of the lateral ventricle
  49. centrum semiovale
  50. basilar artery
  51. carotid canal
  52. external capsule
  53. cingulate gyrus
  54. crura of the fornix
  55. operculum
  56. insular cortex
  57. cerebral peduncle (crus)
  58. pineal gland
  59. midbrain
  60. pons
  61. cingulate sulcus
  62. tail of the caudate nucleus
  63. superior colliculus
  64. jugular tubercle
  65. hypoglossal canal
  66. inferior colliculus
  67. cerebral aqueduct (of Sylvius)
  68. middle cerebellar peduncle
  69. jugular fossa
  70. splenium of the corpus callosum
  71. choroid plexus
  72. superficial cortical vein
  73. internal cerebral vein
  74. quadrigeminal cistern
  75. medulla
  76. fourth ventricle
  77. jugular foramen
  78. vertebral artery
  79. trigone (atrium) of the lateral ventricle
  80. nodule of the cerebellum
  81. cervical spinal cord
  82. forceps major
  83. sigmoid sinus
  84. foramen of Magendie
  85. lateral cerebellomedullary cistern (cisterna magna)
  86. great cerebral vein (of Galen)
  87. superior cerebellar vermis
  88. cerebellar tonsil
  89. mastoid air cells
  90. sternocleidomastoid muscle
  91. horizontal fissure of the cerebellum
  92. occipital horn of the lateral ventricle
  93. tentorium cerebelli
  94. transverse sinus
  95. straight sinus
  96. falx cerebelli
  97. internal occipital crest
  98. trapezius muscle
  99. torcula herophili (confluence of the sinuses)
CT

Normal CT head (without labels)

The same normal brain CT without labels for reference.

Case Discussion

The labeled structures are (excluding the correct side):

  1. frontal crest
  2. frontal sinus
  3. falx cerebri
  4. orbital gyrus
  5. straight gyrus (gyrus rectus)
  6. median longitudinal fissure
  7. crista galli
  8. inferior oblique muscle
  9. olfactory fossa
  10. globe
  11. superior rectus muscle
  12. inferior rectus muscle
  13. lateral rectus muscle
  14. temporalis muscle
  15. medial rectus muscle
  16. forceps minor
  17. orbital segment of the optic nerve
  18. genu of the corpus callosum
  19. superior sagittal sinus
  20. frontal horn of the lateral ventricle
  21. orbital apex
  22. superior orbital fissure
  23. optic canal
  24. inferior orbital fissure
  25. septum pellucidum
  26. head of the caudate nucleus
  27. cisternal segment of the optic nerve
  28. lesser wing of the sphenoid bone
  29. column of the fornix
  30. sylvian fissure
  31. optic chiasm
  32. clinoid segment of the internal carotid artery
  33. lentiform nucleus
  34. optic tract
  35. M1 segment of the middle cerebral artery
  36. anterior clinoid process
  37. body of the corpus callosum
  38. internal capsule
  39. body of the fornix
  40. posterior clinoid process
  41. body of the caudate nucleus
  42. mammillary bodies
  43. Meckel's cave
  44. body of the lateral ventricle
  45. third ventricle
  46. cavernous sinus
  47. sylvian fissure
  48. temporal horn of the lateral ventricle
  49. centrum semiovale
  50. basilar artery
  51. carotid canal
  52. external capsule
  53. cingulate gyrus
  54. crura of the fornix
  55. operculum
  56. insular cortex
  57. cerebral peduncle (crus)
  58. pineal gland
  59. midbrain
  60. pons
  61. cingulate sulcus
  62. tail of the caudate nucleus
  63. superior colliculus
  64. jugular tubercle
  65. hypoglossal canal
  66. inferior colliculus
  67. cerebral aqueduct (of Sylvius)
  68. middle cerebellar peduncle
  69. jugular fossa
  70. splenium of the corpus callosum
  71. choroid plexus
  72. superficial cortical vein
  73. internal cerebral vein
  74. quadrigeminal cistern
  75. medulla
  76. fourth ventricle
  77. jugular foramen
  78. vertebral artery
  79. trigone (atrium) of the lateral ventricle
  80. nodule of the cerebellum
  81. cervical spinal cord
  82. forceps major
  83. sigmoid sinus
  84. foramen of Magendie
  85. lateral cerebellomedullary cistern (cisterna magna)
  86. great cerebral vein (of Galen)
  87. superior cerebellar vermis
  88. cerebellar tonsil
  89. mastoid air cells
  90. sternocleidomastoid muscle
  91. horizontal fissure of the cerebellum
  92. occipital horn of the lateral ventricle
  93. tentorium cerebelli
  94. transverse sinus
  95. straight sinus
  96. falx cerebelli
  97. internal occipital crest
  98. trapezius muscle
  99. torcula herophili (confluence of the sinuses)
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Case information

rID: 62571
Published: 26th Aug 2018
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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