Normal CT head bone window
From the case:
CT head bone window axial calvarium - labeling questions
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_pin":false},"extraPropsURL":"/studies/70763/annotated_viewer_json?lang=us"}
The labeled structures are (excluding the correct side):
- frontal crest
- mastoid air cell
- squamous portion of the temporal bone
- groove for the sigmoid sinus
- squamomastoid suture
- internal occipital protuberance
- occipitomastoid suture
- pterion
- groove for the middle meningeal artery
- groove for the superior sagittal sinus
- squamosal suture
- lambdoid suture
- coronal suture
- squamous process of the frontal bone
- squamous process of the occipital bone
- lambdoid suture
- coronal suture
- bregma
- lambda
- sagittal suture
- parietal bone
- parietal foramen
- sagittal suture
- vertex
Normal bone window no labels
From the case:
CT head bone window axial calvarium - labeling questions
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_pin":false},"extraPropsURL":"/studies/70764/annotated_viewer_json?lang=us"}
The same normal head CT bone window without labels for reference.
Case Discussion
The labeled structures are (excluding the correct side):
- frontal crest
- mastoid air cell
- squamous portion of the temporal bone
- groove for the sigmoid sinus
- squamomastoid suture
- internal occipital protuberance
- occipitomastoid suture
- pterion
- groove for the middle meningeal artery
- groove for the superior sagittal sinus
- squamosal suture
- lambdoid suture
- coronal suture
- squamous process of the frontal bone
- squamous process of the occipital bone
- lambdoid suture
- coronal suture
- bregma
- lambda
- sagittal suture
- parietal bone
- parietal foramen
- sagittal suture
- vertex
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