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  • Title: [Meningiomas of the sellar diaphragm. Apropos of 4 cases].
    Author: Civit T, Marchal JC, Pinelli C, Auque J, Hepner H.
    Journal: Neurochirurgie; 1997; 43(1):21-6; discussion 26-7. PubMed ID: 9205623.
    Abstract:
    Since 1987, we have treated four patients with diaphragma sellae meningioma. Tuberculum sellae meningiomas with intrasellar extension were strictly excluded from this retrospective study. A complete tumor removal was performed in two patients. The two other patients underwent post-operative radiotherapy. According to the Kinjo's classification, the four meningiomas were classified as follows: one type A (supradiaphragmatic-prepituitary), one type B (supradiaphragmatic-retropituitary), one type C (subdiaphragmatic), one type not described in this classification characterized by sub and supradiaphragmatic extension. Based on our experience and data in the literature, the clinical and neuroradiological features of the diaphragma sellae meningiomas are reviewed. Diaphragma sellae visualization at MRI, which is not always possible, allows to localize the tumor on a supra- or infra- diaphragmatic position and to decide the optimal surgical approach. The diaphragma sellae is more visible on protonic density, or T2-weighted sequences, but can be located on T1-weighted images. Appropriate surgical approaches are the sub-fronto-pterional route for supradiaphragmatic meningiomas and the transsphenoidal approach for subdiaphragmatic meningiomas.
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