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Journal of Korean Medical Science ; : 979-981, 2009.
Article in English | WPRIM | ID: wpr-93514

ABSTRACT

Familial glucocorticoid deficiency (FGD) is a rare autosomal recessive disorder characterized by severe glucocorticoid deficiency associated with failure of adrenal responsiveness to ACTH but no mineralocorticoid deficiency. We report a 2 month-old boy of nonconsanguineous parents, presented with hyperpigmentation. Physical examination showed diffuse dark skin of body including, oral mucosa, gum, hands, nails and scrotum. Laboratory evaluation revealed low serum cortisol (0.3 microgram/dL), with very high plasma ACTH level (18,000 pg/mL), and serum cortisol level did not increase after ACTH stimulation test. Serum sodium, potassium, plasma renin activity, aldosterone and 17-hydroxyprogesterone were normal. Sequence analysis of the ACTH receptor (MC2R) gene showed a homozygous mutation of D103N. Diagnosis of FGD was made and treatment started with oral hydrocortisone.


Subject(s)
Humans , Infant , Male , Adrenal Gland Diseases/genetics , Amino Acid Substitution , Anti-Inflammatory Agents/therapeutic use , Glucocorticoids/deficiency , Homozygote , Hormone Replacement Therapy , Hydrocortisone/therapeutic use , Point Mutation , Polymerase Chain Reaction , Receptor, Melanocortin, Type 2/genetics , Sequence Analysis, DNA
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