https://www.selleckchem.com/pr....oducts/l-monosodium-
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. We present a patient with isolated glucocorticoid deficiency due to two novel heterozygous variants in the sphingosine-1-phosphate lyase 1 (SPGL1) gene that