Abstract
The empty sella turcica is defined as the extension of the subarachnoid space toward the intrasellar region with displacement of the pituitary towards the posteroinferior wall. By autopsy studies, the incidence in the general population is around 20%. The association of Cushing's disease (CD) and empty sella has been infrequently reported. In our group, from a total of 68 patients with CD studied by magnetic resonance imaging (MRI), we found the presence of a primary empty sella syndrome (ESS) in 11 (16%). Of these, 9 had partial and 2 total ESS, and in four of them a microadenoma could be identified. Remission, ascertained by subnormal postoperative cortisol levels in blood and/or urine was obtained in 5 of 6 patients operated on by the transphenoidal route. Following surgery, 2 patients presented cerebrospinal fluid (CSF) leakage, 2 diabetes insipidus, and 2 some form of hypopituitarism, figures apparently higher than in non-ESS patients with CD. Ketoconazole was indicated as second line treatment in 2 patients and as primary therapy in 4, resulting in normal urinary free cortisol (UFC) values, with no complications. The relationship of ESS and CD is probably fortuitous given that the frequency of ESS in the general population is similar. Although in empty sella both surgery and radiotherapy seem to have greater risk of complications, surgery remains the first line treatment. Nevertheless, chronic treatment with ketoconazole could be a useful first choice, particularly when no adenoma is seen, or in those who have contraindications for surgery.
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Manavela, M.P., Goodall, C.M., Katz, S.B. et al. The Association of Cushing's Disease and Primary Empty Sella Turcica. Pituitary 4, 145–151 (2001). https://doi.org/10.1023/A:1015310806063
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DOI: https://doi.org/10.1023/A:1015310806063