Introduction: KIAA0586 variants have been associated to short-rib thoracic dysplasia, an autosomal recessive skeletal ciliopathy characterized by a narrow thorax, short limbs, and radiological skeletal abnormalities. Patient concerns: Patients 1 and 2 were two Roma Gypsy siblings presenting thoracic dysplasia and a combination of oral cavity anomalies. Diagnosis: A custom NGS gene panel, including genes associated to skeletal ciliopathies, identified the homozygous KIAA0586 splicing variant c.1815G>A (p.Gln605Gln) in both siblings, confirming the clinical diagnosis of short-rib-polydactyly. Intervention: Patients were transferred to neonatal intensive care unit and received life-support treatment. Outcomes: Patients 1 and 2 died after few hours and 1 month of birth, respectively, because of respiratory failure related with the disease. Conclusion: We report two patients affected by short-rib polydactyly syndrome and overlapping phenotype with oral-facial-digital syndrome associated with the c.1815G>A variant in KIAA0586, suggesting a quite peculiar genotype-phenotype correlation.

The splice c.1815G > A variant in KIAA0586 results in a phenotype bridging short-rib-polydactyly and oral-facial-digital syndrome A case report and literature review

Novelli, Antonio
2020-01-01

Abstract

Introduction: KIAA0586 variants have been associated to short-rib thoracic dysplasia, an autosomal recessive skeletal ciliopathy characterized by a narrow thorax, short limbs, and radiological skeletal abnormalities. Patient concerns: Patients 1 and 2 were two Roma Gypsy siblings presenting thoracic dysplasia and a combination of oral cavity anomalies. Diagnosis: A custom NGS gene panel, including genes associated to skeletal ciliopathies, identified the homozygous KIAA0586 splicing variant c.1815G>A (p.Gln605Gln) in both siblings, confirming the clinical diagnosis of short-rib-polydactyly. Intervention: Patients were transferred to neonatal intensive care unit and received life-support treatment. Outcomes: Patients 1 and 2 died after few hours and 1 month of birth, respectively, because of respiratory failure related with the disease. Conclusion: We report two patients affected by short-rib polydactyly syndrome and overlapping phenotype with oral-facial-digital syndrome associated with the c.1815G>A variant in KIAA0586, suggesting a quite peculiar genotype-phenotype correlation.
2020
KIAA0586
Oral cavity malformation
Short-rib-polydactyly
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14245/10110
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