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Open Access 26-02-2024 | Hamartoma | Research

PTEN hamartoma tumor syndrome: Clinical and genetic characterization in pediatric patients

Authors: Jesús Martín-Valbuena, Nerea Gestoso-Uzal, María Justel-Rodríguez, María Isidoro-García, Elena Marcos-Vadillo, Sandra Milagros Lorenzo-Hernández, M. Carla Criado-Muriel, Pablo Prieto-Matos

Published in: Child's Nervous System | Issue 6/2024

Abstract

Objective

The aim of this study was to provide a full characterization of a cohort of 11 pediatric patients diagnosed with PTEN hamartoma tumor syndrome (PHTS).

Patients and methods

Eleven patients with genetic diagnostic of PHTS were recruited between February 2019 and April 2023. Clinical, imaging, demographic, and genetic data were retrospectively collected from their hospital medical history.

Results

Regarding clinical manifestations, macrocephaly was the leading sign, present in all patients. Frontal bossing was the most frequent dysmorphism. Neurological issues were present in most patients. Dental malformations were described for the first time, being present in 27% of the patients. Brain MRI showed anomalies in 57% of the patients. No tumoral lesions were present at the time of the study. Regarding genetics, 72% of the alterations were in the tensin-type C2 domain of PTEN protein. We identified four PTEN genetic alterations for the first time.

Conclusions

PTEN mutations appear with a wide variety of clinical signs and symptoms, sometimes associated with phenotypes which do not fit classical clinical diagnostic criteria for PHTS. We recommend carrying out a genetic study to establish an early diagnosis in children with significant macrocephaly. This facilitates personalized monitoring and enables anticipation of potential PHTS-related complications.

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Title: PTEN hamartoma tumor syndrome: Clinical and genetic characterization in pediatric patients
Authors: Jesús Martín-Valbuena
Nerea Gestoso-Uzal
María Justel-Rodríguez
María Isidoro-García
Elena Marcos-Vadillo
Sandra Milagros Lorenzo-Hernández
M. Carla Criado-Muriel
Pablo Prieto-Matos
Publication date: 26-02-2024
Publisher: Springer Berlin Heidelberg
Keyword: Hamartoma
Published in: Child's Nervous System / Issue 6/2024
Print ISSN: 0256-7040
Electronic ISSN: 1433-0350
DOI: https://doi.org/10.1007/s00381-024-06301-2

Keynote webinar | Spotlight on medication adherence

Springer Medicine

PTEN hamartoma tumor syndrome: Clinical and genetic characterization in pediatric patients

Abstract

Objective

Patients and methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objective

Patients and methods

Results

Conclusions

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