eISSN: 2083-8441
ISSN: 2081-237X
Pediatric Endocrinology Diabetes and Metabolism
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2/2020
vol. 26
 
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abstract:
Case report

Diagnostic challenges and considerations of cyclical Cushing’s syndrome in a 15-year-old female

Melissa An
1
,
Landon Hendricks
2
,
Bert Bachrach
1

1.
Pediatrics, University of Missouri School of Medicine, United States
2.
Pediatrics, University of New Mexico School of Medicine, United States
Pediatr Endocrinol Diabetes Metab 2020; 26 (2): 104–107
Online publish date: 2020/05/27
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Cyclical Cushing’s syndrome (CS) is a rare disorder in which cortisol secretion is cyclical and intermittent. This phenomenon makes for a challenging diagnosis, as patterns of cycling can vary widely among patients and as patients with cyclical CS do not exhibit unique clinical features compared to those without cycling. Current research suggests that cyclical CS may be present in approximately 15% of adult cases, with an even lower reported prevalence in the pediatric population. In this case study, we describe a 15-year-old female with obesity and hypertension who was then diagnosed with cyclical CS after we pursued additional screening tests of urine creatinine and 24-hour urine cortisol, dexamethasone suppression tests, bilateral inferior petrosal sinus sampling, as well as MRI. We discuss the vari-ous diagnostic modalities in the challenging diagnosis of cyclical CS as well as the importance and modalities of post-operative monitor-ing in this patient population. From this case study, we emphasize that when CS is suspected and initial screening tests are negative, clinicians should be aware of the cycling phenomenon of CS in order to consider performing additional screening tests.
keywords:

obesity, Cushing’s disease, hypercortisolemia

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