MRI head sagittal T1 - labeling questions

Case contributed by Craig Hacking
Diagnosis not applicable

Normal MR head (with labels)

Annotated image

The labeled structures are (excluding the correct side):

  1. temporal horn of lateral ventricle
  2. primary fissure of cerebellum
  3. choroid plexus
  4. trigone (atrium) of lateral ventricle
  5. horizontal fissure of cerebellum
  6. occipital horn of lateral ventricle
  7. intraorbital segment of optic nerve
  8. diploic space of parietal bone
  9. body of caudate nucleus
  10. maxillary sinus
  11. folia of cerebellum
  12. medial rectus muscle
  13. thalamus
  14. head of caudate nucleus
  15. marginal sulcus
  16. prepontine cistern
  17. cavernous segment of internal carotid artery
  18. splenium of corpus callosum
  19. intracanalicular segment of optic nerve
  20. parieto-occipital fissure
  21. nasopharynx
  22. nasopharyngeal (adenoid) tonsil
  23. cisterna magna
  24. pons
  25. dorsum sellae
  26. inferior colliculus
  27. body of lateral ventricle
  28. column of fornix
  29. cervical spinal cord
  30. interventricular foramen (of Monro)
  31. midbrain
  32. sphenoid sinus
  33. obex
  34. odontoid process (peg or dens) of C2
  35. great cerebral vein (of Galen)
  36. suprasellar cistern
  37. superior cerebellar velum
  38. anterior arch of C1
  39. interthalamic adhesion (massa intermedia)
  40. third ventricle
  41. cerebral aqueduct (of Sylvius)
  42. medulla oblongata
  43. body of fornix
  44. anterior commisure
  45. pineal gland
  46. pituitary infundibulum
  47. tectal plate
  48. interpeduncular cistern
  49. genu of corpus callosum
  50. optic chiasm
  51. mammillary body
  52. basilar artery
  53. superior sagittal sinus
  54. septum pellucidum
  55. internal cerebral vein
  56. hypothalamus
  57. posterior pituitary gland
  58. cingulate gyrus
  59. anterior pituitary gland
  60. body of corpus callosum
  61. planum sphenoidale
  62. quadrigeminal plate cistern
  63. superior colliculus
  64. clivus
  65. torcular herophili (confluence of the sinuses)
  66. rostrum of corpus callosum
  67. gyrus rectus
  68. cerebellar tonsil
  69. postcentral gyrus
  70. central sulcus (of Rolando)
  71. crux of fornix
  72. cingulate sulcus
  73. prepyramidal fissure
  74. optic tract
  75. transverse sinus
  76. precentral gyrus
  77. middle cerebellar peduncle
  78. dentate nucleus of cerebellum
  79. white matter of cerebellum
  80. frontal horn of lateral ventricle
  81. forceps minor
  82. forceps major
  83. tentorium cerebelli
  84. tail of caudate nucleus
  85. internal capsule
  86. globus pallidus

Normal MR (without labels)

mri

The same normal brain MRI T1 without labels for reference.

Case Discussion

The labeled structures are (excluding the correct side):

  1. temporal horn of lateral ventricle
  2. primary fissure of cerebellum
  3. choroid plexus
  4. trigone (atrium) of lateral ventricle
  5. horizontal fissure of cerebellum
  6. occipital horn of lateral ventricle
  7. intraorbital segment of optic nerve
  8. diploic space of parietal bone
  9. body of caudate nucleus
  10. maxillary sinus
  11. folia of cerebellum
  12. medial rectus muscle
  13. thalamus
  14. head of caudate nucleus
  15. marginal sulcus
  16. prepontine cistern
  17. cavernous segment of internal carotid artery
  18. splenium of corpus callosum
  19. intracanalicular segment of optic nerve
  20. parieto-occipital fissure
  21. nasopharynx
  22. nasopharyngeal (adenoid) tonsil
  23. cisterna magna
  24. pons
  25. dorsum sellae
  26. inferior colliculus
  27. body of lateral ventricle
  28. column of fornix
  29. cervical spinal cord
  30. interventricular foramen (of Monro)
  31. midbrain
  32. sphenoid sinus
  33. obex
  34. odontoid process (peg or dens) of C2
  35. great cerebral vein (of Galen)
  36. suprasellar cistern
  37. superior cerebellar velum
  38. anterior arch of C1
  39. interthalamic adhesion (massa intermedia)
  40. third ventricle
  41. cerebral aqueduct (of Sylvius)
  42. medulla oblongata
  43. body of fornix
  44. anterior commisure
  45. pineal gland
  46. pituitary infundibulum
  47. tectal plate
  48. interpeduncular cistern
  49. genu of corpus callosum
  50. optic chiasm
  51. mammillary body
  52. basilar artery
  53. superior sagittal sinus
  54. septum pellucidum
  55. internal cerebral vein
  56. hypothalamus
  57. posterior pituitary gland
  58. cingulate gyrus
  59. anterior pituitary gland
  60. body of corpus callosum
  61. planum sphenoidale
  62. quadrigeminal plate cistern
  63. superior colliculus
  64. clivus
  65. torcular herophili (confluence of the sinuses)
  66. rostrum of corpus callosum
  67. gyrus rectus
  68. cerebellar tonsil
  69. postcentral gyrus
  70. central sulcus (of Rolando)
  71. crux of fornix
  72. cingulate sulcus
  73. prepyramidal fissure
  74. optic tract
  75. transverse sinus
  76. precentral gyrus
  77. middle cerebellar peduncle
  78. dentate nucleus of cerebellum
  79. white matter of cerebellum
  80. frontal horn of lateral ventricle
  81. forceps minor
  82. forceps major
  83. tentorium cerebelli
  84. tail of caudate nucleus
  85. internal capsule
  86. globus pallidus

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