Abstract:
:We compared MRI studies of the sellar area and embryological and adult histological studies of the cavernous sinuses and pituitary fossa. MRI studies were performed in 50 normal subjects with coronal sections using a fast inversion-recovery sequence to demonstrate the dural walls of the cavernous sinus and pituitary fossa. With this sequence, dura mater appears as a high-signal linear structure. The lateral and superior walls of the cavernous sinus was easily identified on all studies, but demonstration of a dural wall separating the cavernous sinus from the pituitary fossa was not possible. These results correlated well with embryological and adult histological studies obtained from 14 specimens. The absence of a strong separation between the pituitary fossa and the cavernous sinus explains the high incidence of extension of pituitary tumours to the cavernous sinuses and vice versa.
journal_name
Neuroradiologyjournal_title
Neuroradiologyauthors
Dietemann JL,Kehrli P,Maillot C,Diniz R,Reis M Jr,Neugroschl C,Vinclair Ldoi
10.1007/s002340050653subject
Has Abstractpub_date
1998-10-01 00:00:00pages
627-30issue
10eissn
0028-3940issn
1432-1920journal_volume
40pub_type
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