Cushing Syndrome in Pediatrics
Cushing Syndrome in Pediatrics Cushing syndrome in pediatrics is a rare but significant endocrine disorder resulting from chronic exposure to excess cortisol, a hormone produced by the adrenal glands. While more common in adults, pediatric cases pose unique diagnostic and management challenges. Recognizing the signs early is crucial for timely intervention and preventing long-term complications.
In children, Cushing syndrome often presents with a constellation of symptoms that can be subtle or mistaken for normal growth variations. Common features include rapid weight gain, particularly around the face, neck, and abdomen, leading to a characteristic “moon face” and “buffalo hump.” Growth retardation is another hallmark, as excess cortisol impairs normal growth velocity, resulting in shorter stature compared to peers. Skin changes such as thinning, easy bruising, purple striae, and delayed wound healing are also typical. Additionally, children may exhibit hypertension, mood swings, irritability, and muscle weakness, all of which can impact their quality of life.
The causes of Cushing syndrome in children are diverse. The majority of cases are endogenous, stemming from the body’s own overproduction of cortisol. These include adrenal tumors, bilateral adrenal hyperplasia, or pituitary adenomas producing excess adrenocorticotropic hormone (ACTH), known as Cushing disease. Less commonly, exogenous sources—such as prolonged use of glucocorticoid medications—are responsible. Identifying the underlying etiology requires a thorough workup involving biochemical testing, imaging studies, and sometimes surgical exploration.
The diagnostic process begins with biochemical confirmation of cortisol excess. Initial tests include 24-hour urinary free cortisol, late-night salivary cortisol, or low-dose dexamethasone suppression tests. Elevated cortisol levels that do not suppress with dexamethasone suggest
endogenous hypercortisolism. Once confirmed, determining whether the cause is ACTH-dependent (pituitary or ectopic sources) or independent (adrenal tumors) is essential. Measuring plasma ACTH levels, along with imaging studies such as MRI of the pituitary and CT scans of the adrenal glands, helps pinpoint the source.
Management strategies depend on the cause. For adrenal tumors or hyperplasia, surgical removal of the affected gland(s) often yields a cure. In cases of Cushing disease caused by a pituitary adenoma, transsphenoidal surgery to excise the tumor is the primary approach. Medical therapies, including steroidogenesis inhibitors, may be used in selected cases or when surgery is contraindicated. Additionally, managing associated complications like hypertension, glucose intolerance, and osteoporosis is vital during treatment.
Long-term follow-up is essential for pediatric patients to monitor for recurrence, assess growth and development, and address any hormone deficiencies that may result from treatment. Early diagnosis and tailored therapy improve outcomes and help restore normal growth patterns, cognitive development, and overall health.
Understanding Cushing syndrome in pediatrics underscores the importance of a high index of suspicion when children present with atypical growth patterns and distinctive physical features. Multidisciplinary care involving endocrinologists, radiologists, and surgeons ensures comprehensive management, ultimately improving prognosis and quality of life for affected children.
