Neuroanatomy TOTD #3
1/6 The superior frontal sulcus courses in the AP direction, and terminates at the precentral sulcus posteriorly. The central sulcus is immediately posterior to the precentral, and the postcentral immediately posterior to the central.
#meded #FOAMed #FOAMrad
1/6 The superior frontal sulcus courses in the AP direction, and terminates at the precentral sulcus posteriorly. The central sulcus is immediately posterior to the precentral, and the postcentral immediately posterior to the central.
#meded #FOAMed #FOAMrad
2/6 "Upper T sign" or "L sign"
The SFS intersects the precentral s
Central sulcus is just posterior
The SFS intersects the precentral s
Central sulcus is just posterior
3/6 "Lower T sign" or "M sign"
The IFS terminates at the precentral s.
Central sulcus is just posterior
The IFS terminates at the precentral s.
Central sulcus is just posterior
4/6 The "bracket sign" - the medial bracket-esque marginal sulcus is immediately post. to the central sulcus.
Also, the "bifid postecentral sulcus" is split by the marginal sulcus, just behind the central sulcus.
Also, the "bifid postecentral sulcus" is split by the marginal sulcus, just behind the central sulcus.
5/6 The "U sign" - central sulcus does no intersect the lateral fissure. A U-shaped gyrus connects the pre- and post central gyri inferiorly.
6/6 The "omega sign" - the hand knob of the motor strip (precentral gyrus) shapes the sulcus like the greek letter omega.
At least 5 signs to help find the central sulcus. Important to localize in cases of infarct, tumor, presurgical planning, etc...
#meded #FOAMed #FOAMrad #radres #neurorad #medtwitter #radiology #neurology #neurosurgery #neuroanatomy #neuroanatomyTOTD
#meded #FOAMed #FOAMrad #radres #neurorad #medtwitter #radiology #neurology #neurosurgery #neuroanatomy #neuroanatomyTOTD
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