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Title: Bowel perforation complicating an ACTH-secreting phaeochromocytoma.
Austin Authors: Flynn, Elise;Baqar, Sara;Liu, Dorothy ;Ekinci, Elif I ;Farrell, Stephen;Zajac, Jeffrey D ;De Luise, Mario;Seeman, Ego 
Affiliation: University of Melbourne , Parkville, Victoria , Australia
Austin Health, Heidelberg, Victoria, Australia
Issue Date: 2016
Date: 2016-08-24
Publication information: Endocrinology, diabetes & metabolism case reports 2016; 2016: 16-0061
Abstract: ACTH-secreting phaeochromocytoma (ASP) is a rare cause of ACTH-dependent Cushing's syndrome (CS). We report the case of a 63-year-old female presenting with CS secondary to an ASP complicated by bowel perforation. This case report highlights ASP as an uncommon but important cause of ectopic ACTH secretion (EAS). There have been 29 cases of ASP, all of which were unilateral and benign, but associated with significant complications. Patients presenting with ASP have the potential for cure with unilateral adrenalectomy. Given this promising prognosis if recognised, ASP should be considered in the diagnostic workup of ACTH-dependent CS. As this case demonstrates, gastrointestinal complications can arise from severe hypercortisolaemia associated with CS. Early medical and surgical intervention is imperative as mortality approaches 50% once bowel perforation occurs. Consider phaeochromocytoma in the diagnostic workup of ACTH-dependent CS; screen with plasma metanephrines or urinary catecholamines.Serial screening may be required if ACTH-secreting phaeochromocytoma is suspected, as absolute levels can be misleading.Early catecholamine receptor blockade and adrenal synthesis blockade may avoid the need for rescue bilateral adrenalectomy in ACTH-secreting phaeochromocytoma.Consider early medical or surgical management when gastrointestinal features are present in patients with CS, as bowel perforation due to severe hypercortisolaemia can occur and is associated with significant mortality.
DOI: 10.1530/EDM-16-0061
ORCID: 0000-0003-2372-395X
Journal: Endocrinology, diabetes & metabolism case reports
PubMed URL: 28203371
ISSN: 2052-0573
Type: Journal Article
Appears in Collections:Journal articles

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