Evidence map›Paper›PMID 41488815›Full record

ArticleCase reports in nephrology and dialysis

A Case of Hyperinsulinemic Hypoglycaemia Associated with Atypical Fanconi Renal Tubulopathy Syndrome Caused by an HNF4A Variant.

Sarai Garriga-Edo, Lydia Peris-Serra, Héctor Ríos Duro, Marina Giralt, Noelia Díaz-Troyano, Roser Ferrer, María Antolín Mate, Belén Pérez Dueñas, María Clemente

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Article in Case reports in nephrology and dialysis. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Sarai Garriga-EdoClinical Biochemistry Department, Vall d'Hebron University Hospital, Barcelona, Spain.
Lydia Peris-SerraClinical Biochemistry Department, Vall d'Hebron University Hospital, Barcelona, Spain.
Héctor Ríos DuroPaediatric Nephrology Service, Vall d'Hebron University Hospital, Barcelona, Spain.
Marina GiraltClinical Biochemistry Department, Vall d'Hebron University Hospital, Barcelona, Spain.
Noelia Díaz-TroyanoClinical Biochemistry Department, Vall d'Hebron University Hospital, Barcelona, Spain.
Roser FerrerClinical Biochemistry Department, Vall d'Hebron University Hospital, Barcelona, Spain.
María Antolín MateMolecular and Clinical Genetics Unit, Genetics Department, Vall d'Hebron University Hospital, Barcelona, Spain.
Belén Pérez DueñasBiomedical Research Networking Center on Rare Diseases (CIBERER), Autonomous University of Barcelona (UAB), Barcelona, Spain.
María ClementeBiomedical Research Networking Center on Rare Diseases (CIBERER), Autonomous University of Barcelona (UAB), Barcelona, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: This case illustrates the challenges in the diagnosis of a rare disease with an intricate orientation. The definitive genetic diagnosis was carried out after establishing crucial correlations between the preliminary clinical indications and the laboratory findings. Case Presentation: The initial presentation was myoclonic jerks. This was a direct consequence of hyperinsulinaemic hypoglycaemia (HH), and not a phenotypic characteristic described in previous case reports. Linking this to glycaemia led to the evaluation of response to fasting, where inadequate insulin suppression resulted in hypoketotic hypoglycaemia. The diagnosis of chronic kidney dysfunction associated with atypical Fanconi renal tubulopathy syndrome type 4 (FRTS4) was indicated on the basis of a decreased estimated glomerular filtration rate, nephrocalcinosis, millimetric lithiasis, rickets, and complex proximal tubulopathy. This indicated atypical FRTS4 as associated with HH and necessitated further molecular genetic testing. Conclusion: The patient was identified as a carrier of the c.187C>T (p.Arg63Trp) variant in the

Indexed as

Case reportClinical molecular diagnosticsFanconi syndromeHNF4A variantHyperinsulinismHypoglycaemiaKidney and urinary tract diseasesPaediatricsTubulopathy

Identifiers

PMID41488815
PMCPMC12757114

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