Primary Generalized Glucocorticoid Hypersensitivity Treated with Mifepristone: A Case Report

Area of Science:

• Endocrinology
• Genetics

Background:

• Cushing syndrome symptoms can arise from rare conditions like primary generalized glucocorticoid hypersensitivity.
• Understanding glucocorticoid receptor function is crucial for diagnosing and managing such disorders.

Observation:

• A patient presented with Cushing syndrome, exhibiting normal pituitary-adrenal axis function but reduced cortisol secretion.
• Imaging revealed bilateral adrenal atrophy and increased visceral/abdominal fat, with normal 46, XY chromosomes.
• Reduced mineralocorticoid receptor gene mRNA levels were detected via quantitative reverse transcription-polymerase chain reaction.

Findings:

• Mifepristone, a glucocorticoid receptor antagonist, was administered to manage primary generalized glucocorticoid hypersensitivity.
• The treatment demonstrated therapeutic effects on the patient's electrolyte, lipid, and bone metabolism.
• This case adds to the limited reports on mifepristone treatment for this specific condition.

Implications:

• Mifepristone offers a potential therapeutic option for primary generalized glucocorticoid hypersensitivity.
• Further research into glucocorticoid receptor antagonist efficacy in similar conditions is warranted.
• This case highlights the importance of considering rare endocrine disorders in complex clinical presentations.