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MINERVA PEDIATRICA

A Journal on Pediatrics, Neonatology, Adolescent Medicine,
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Minerva Pediatrica 2011 December;63(6):527-31

Copyright © 2011 EDIZIONI MINERVA MEDICA

language: Italian

Growth hormone deficiency associated with 22q11.2 Deletion: a case report

Bizzocchi A., Genoni G., Petri A., Prodam F., Negro M., Bellone S., Bona G.

Dipartimento di Scienze Mediche Clinica Pediatrica, Università del Piemonte Orientale, “A. Avogadro”, Novara, Italia


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The 22q11.2 microdeletion produces many syndromes, characterized by similar phenotypical features. The most known syndromes are: the DiGeorge syndrome, the velocardiofacial syndrome, the conotruncal anomaly face syndrome. The hallmark features are represented by cardiac anomalies, palate defects, immune and cognitive deficiencies, facial dysmorphisms. Less common disorders include: genito-urinary abnormalities, visual defects, autoimmune disorders and pituitary anomalies, being the last represented by growth hormone and/or insulin growth factor-I deficiency. We present the case of a 8 years old male admitted to our Division for failure to thrive. We found growth hormone deficiency and pituitary hypoplasia associated with some of the anomalies shown above, thus we suspected and confirmed the 22q11.2 deletion syndrome. In literature few cases of associated 22q11.2 deletion syndrome with growth hormone deficiency are described, while short stature between children with and children without cleft palate is reported to be more frequent in the first ones, suggesting that the 22q11.2 deletion syndrome remains undetected in many affected children and that the growth hormone deficiency prevalence in affected children has to be investigated. The wide phenotypical presentation of 22q11.2 deletion syndrome requires a multidisciplinary approach to the affected subject and, from the auxologic point of view, is good to monitoring the growing trend and, if short stature is present, check for the growth hormone deficiency.

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gianni.bona@maggioreosp.novara.it