The Wolfram syndrome: diabetes mellitus, hypacusis, optic atrophy and short stature in STH deficiency
Abstract
HISTORY AND CLINICAL FINDINGS: A 43-year-old man was known for 3 years to have diabetes mellitus. For 2 months before admission he had symptoms of hyperglycaemia with polyuria, polydipsia, weight loss, as well as impairment of vision and declining fitness. In addition to bilateral deafness he was clearly of normally proportioned short stature (150 cm).
INVESTIGATIONS: The levels of blood sugar (221 mg/dl), HbA1c(10.2%), triglycerides (496 mg/dl) and cholesterol (323 mg/dl) were raised, while the concentration of somatotropic hormone was diminished, both before and after arginine administration. Fundoscopy revealed concentric diminution of the visual fields with left amblyopia. Visual evoked potentials and colour sense testing revealed bilateral optical atrophy, and the audiogram demonstrated deafness. These findings provided the diagnosis of Wolfram syndrome, namely insulin-dependent diabetes mellitus, deafness, optical atrophy and small stature with somatotropic hormone deficiency.
TREATMENT AND COURSE: On insulin treatment the metabolic state became normal (HbA1c 7.5%, normal lipid profile). It was decided that the deficiency in somatotropic hormone regulation did not require treatment.
CONCLUSION: Cardinal symptoms of the autosomally recessive Wolfram syndrome are insulin-dependent diabetes and optic nerve atrophy. Several types of hormonal abnormalities are associated with it, including a deficiency in the somatotropic axis. To obtain early and adequate hormonal…
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