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Published in: Pediatric Nephrology 10/2023

29-11-2022 | Kidney Cancer | Educational Review

Cystic kidney disease in tuberous sclerosis complex: current knowledge and unresolved questions

Authors: Sebastian Gallo-Bernal, Aoife Kilcoyne, Michael S. Gee, Elahna Paul

Published in: Pediatric Nephrology | Issue 10/2023

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Abstract

Tuberous sclerosis complex (TSC) is an autosomal dominant disorder with an estimated incidence of one in 5000 to 10,000 live births worldwide. Two million people of all races and genders are estimated to have TSC secondary to mutations in one of two tumor suppressor genes, TSC1 or TSC2. The respective TSC1 and 2 gene products — hamartin and tuberin — form cytoplasmic heterodimers that inhibit mTOR-mediated cell growth and division. When mTOR inhibition is lost, people with TSC develop characteristic and usually benign tumors in various organ systems. Kidney tumors and cysts are common, particularly in the setting of TSC2 gene mutations. In most TSC patients, the number of kidney cysts is limited, their morphology is simple, their size is small, and their clinical significance is negligible. In some, cyst morphology progresses from simple to complex with the risk of malignant transformation. In others, aggressive accumulation and growth of kidney cysts can cause hypertension, impaired kidney function, and progression to kidney failure. This educational review summarizes current knowledge and remaining open questions regarding cystic kidney disease in TSC, emphasizing detection, classification, surveillance, and treatment options.
Literature
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go back to reference Ewalt DH, Sheffield E, Sparagana SP, Delgado MR et al (1998) Renal lesion growth in children with tuberous sclerosis complex. J Urol 160:141–145CrossRefPubMed Ewalt DH, Sheffield E, Sparagana SP, Delgado MR et al (1998) Renal lesion growth in children with tuberous sclerosis complex. J Urol 160:141–145CrossRefPubMed
Metadata
Title
Cystic kidney disease in tuberous sclerosis complex: current knowledge and unresolved questions
Authors
Sebastian Gallo-Bernal
Aoife Kilcoyne
Michael S. Gee
Elahna Paul
Publication date
29-11-2022
Publisher
Springer Berlin Heidelberg
Published in
Pediatric Nephrology / Issue 10/2023
Print ISSN: 0931-041X
Electronic ISSN: 1432-198X
DOI
https://doi.org/10.1007/s00467-022-05820-x

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