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diaphragma sellae
(redirected from Diaphragma sella)

   Also found in: Wikipedia 0.01 sec.
diaphragma sellae,
diaphragma sellae
a sheet of dura separating the pituitary gland in its fossa from the brain above.


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[FIGURE 7 OMITTED] [FIGURE 8 OMITTED] [FIGURE 9 OMITTED] [FIGURE 10 OMITTED] Pituitary fossa pathology The "empty sella" appearance is due to the patulous diaphragma sella and extension of the suprasellar subarachnoid space.
Alternatively, a diverticulum that forms within the arachnoidal layers progressively enlarges; this may develop beneath the diaphragma sella or invaginate through it.
 
 
 
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