From the case:
Twining's line
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Info
Twining's line is the distance from the tuberculum sellae to the torcula.
Case Discussion
The distance (Twining's line) and angle with the tentorium is useful in volumetric assessment of the posterior cranial fossa in Chiari 1 malformations.
Attribution:
Sagittal MRI image from Frank Gaillard, rID:42777
Yellow line drawn by Craig Hacking
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