Hormones (Athens, Greece) · 2022
Addison's disease without hyperpigmentation in pediatrics: pointing towards specific causes.
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Giannakopoulos Aristeidis, Sertedaki Amalia, Efthymiadou Alexandra, Chrysis Dionisios
Аннотация
INTRODUCTION: Hyperpigmentation of skin and mucous membranes comprises a hallmark of the clinical diagnosis of Addison's disease. However, there have been reports of patients with adrenal insufficiency from diverse causes who did not develop hyperpigmentation. The pathophysiology responsible for the absence of increased pigmentation is not clearly defined in many cases.
CASE PRESENTATION: We present a patient with isolated glucocorticoid deficiency due to two novel heterozygous variants in the sphingosine-1-phosphate lyase 1 (SPGL1) gene that did not develop any hyperpigmentation.
DISCUSSION: We elaborate on the presumed mechanism of the absence of hyperpigmentation in adrenal insufficiency due to SPGL1 deficiency and discuss the other reported cases of Addison's disease without hyperpigmentation and the possible mechanism accounted for.
CONCLUSION: Absence of hyperpigmentation, a basic component of the clinical diagnosis of Addison's disease, may lead to delay of a critical diagnosis, while causes that result in adrenal insufficiency without hyperpigmentation should explicitly be considered in pediatric cases where adrenal failure is documented by clinical symptomatology and biochemistry.
CASE PRESENTATION: We present a patient with isolated glucocorticoid deficiency due to two novel heterozygous variants in the sphingosine-1-phosphate lyase 1 (SPGL1) gene that did not develop any hyperpigmentation.
DISCUSSION: We elaborate on the presumed mechanism of the absence of hyperpigmentation in adrenal insufficiency due to SPGL1 deficiency and discuss the other reported cases of Addison's disease without hyperpigmentation and the possible mechanism accounted for.
CONCLUSION: Absence of hyperpigmentation, a basic component of the clinical diagnosis of Addison's disease, may lead to delay of a critical diagnosis, while causes that result in adrenal insufficiency without hyperpigmentation should explicitly be considered in pediatric cases where adrenal failure is documented by clinical symptomatology and biochemistry.