Publications by authors named "Oswaldo Nunez-Almache"

Objectives: Congenital hyperinsulinism (HI) is a heterogeneous clinical disorder with great variability in its clinical phenotype, and to date, pathogenic variants in 23 genes have been recognized.  Hyperinsulinism-hyperammonemia syndrome (HI/HA) is the second most frequent cause of this disease that shows an autosomal dominant pattern and is caused by an activating mutation of the gene, which responds favorably to the use of diazoxide. HI/HA syndrome presents with fasting hypoglycemia; postprandial hypoglycemia, especially in those with a high protein content (leucine); and persistent mild hyperammonemia.

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Schimmelpenning-Feuerstein-Mims syndrome (SFM), an epidermal nevus syndrome characterized by skin lesions, has an estimated incidence of 1 per 10 000 live births. Nevus sebaceous, the most common cutaneous lesion, and verrucous nevus, the less frequent lesion, are coupled with a wide range of extracutaneous manifestations. As part of these manifestations, rarely, central precocious puberty can arise.

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A case is reported of a 7 year old patient with progressive dyspnea and genital development according to Marshall and Tanner criteria at the G2 VP3 stage. A mass of regular and well-defined borders was found in the chest, with calcifications and cystic areas of heterogeneous content. Basal measurements of FSH, LH and testosterone were <10 mIU/mL, 12.

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