Abstract

Growth Hormone Deficiency (GHD) is one of the most important treatable endocrine causes of short stature. A problem anywhere in the Growth Hormone (GH) - Insulin-Like Growth Factor-1 (IGF-1) axis can lead to short stature. Childhood GH deficiency can be congenital, acquired, or idiopathic. Hereby, the authors present a case series consisting of five cases of short stature, aimed to provide an overview of the spectrum of GH-related disorders. All five patients presented to the Paediatric Endocrinology Outpatient Department of a tertiary care Institute with complaints of not gaining height. The patients in present case series had significant short stature (Z score for height <-3 SD (Standard Deviation) in each case). These patients were suspected of having GH deficiency based on clinical presentation and investigations. After a proper diagnostic work-up and GH stimulation tests, cases 1 to 4 were found to have GH deficiency. The 5th case was suspected of having Laron Syndrome based on high GH levels and low IGF-1. There were subtle differences in the spectrum of GH deficiency. The 1st case had Multiple Pituitary Hormone Deficiency (MPHD). Cases 2 to 4 had Isolated Growth Hormone Deficiency (IGHD). Case 2 had findings of pituitary stalk interruption on brain imaging. We found a genetic association in the 3rd case, while the 4th case had almost normal brain imaging. Cases 1 to 4 received GH therapy, and all showed appreciable height gain. These subtle differences can sometimes make the diagnosis difficult, and often a different approach to treatment is required.

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