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Related Experiment Videos

Cyclic Cushing's syndrome.

R Sakiyama, M W Ashcraft, A J Van Herle

    The American Journal of Medicine
    |November 1, 1984
    PubMed
    Summary

    Cyclic Cushing's syndrome, a rare disorder with fluctuating adrenal steroid production, can present with prolonged cycles and spontaneous remission. This case highlights challenges in diagnosing pituitary adenoma-related cyclic Cushing's syndrome.

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    Area of Science:

    • Endocrinology
    • Neuroendocrinology
    • Oncology

    Background:

    • Cyclic Cushing's syndrome is a rare endocrine disorder characterized by periodic fluctuations in adrenal steroid production.
    • Pituitary adenomas are a known, though infrequent, cause of Cushing's syndrome.
    • Accurate diagnosis can be challenging due to the intermittent nature of hormone overproduction.

    Observation:

    • A case of cyclic Cushing's syndrome caused by a pituitary adenoma is presented.
    • The patient exhibited a unique, prolonged cycle length of approximately six months.
    • Spontaneous clinical and biochemical remission occurred during the patient's cycle.

    Findings:

    • The described case expands the understanding of cyclic Cushing's syndrome presentation and duration.
    • Review of previous cases underscores the diagnostic difficulties associated with fluctuating cortisol levels.
    • Dexamethasone suppression testing interpretation is complicated by spontaneous cortisol variations.

    Implications:

    • This case emphasizes the need for prolonged monitoring and careful interpretation of diagnostic tests in suspected cyclic Cushing's syndrome.
    • Recognition of prolonged cycles is crucial for timely diagnosis and management of pituitary adenoma-related Cushing's.
    • Improved diagnostic strategies are needed to address the challenges posed by intermittent hormone secretion in endocrine disorders.

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