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Legius Syndrome Vs Neurofibromatosis Type 1, About a Case Report

Received: 26 March 2025     Accepted: 10 April 2025     Published: 16 June 2025
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Abstract

The genodermatoses is genetic diseases that affect to the skin and their old ones, in those which alone they influence hereditary mechanisms linked to the genes. The neurofibromatosis type 1 are a genodermatoses that belongs to the group of the Rasophaties, with brown formation of stains with milk and tumours in skin and nervous system. This diseases can be diagnose clinically with the presence of two clinical approaches. In the year 2001 a Rasophatie was described that previously it was considered a clinical form of the neurofibromatosis, but it was demonstrated by means of molecular studies that it is a different diseases and it was designated as Legius syndrome. This syndrome completes two of the current diagnostic approaches of the neurofibromatosis type 1, when presenting coffee with milk macula and axillary or inguinal ephelides, being difficult to differentiate them. Although at the moment molecular studies of sequence exist for the diagnosis of both rasopatías, in some countries it is a non-available technology. In Cuba, like part of a methodology for the attention to patient with genodermatoses, the proposal of modification of diagnostic approaches of neurofibromatosis type 1 were included, unifying in one single approach the presence of coffee with milk macula and axillary or inguinal ephelides. The presentation is made with the purpose of standing out the importance of modifying the diagnostic approaches of neurofibromatosis type 1, proposed in the methodology. An adolescent is described that presented coffee with milk macula, axillary ephelides and overturn for deficit of attention with hyperactivity, assisted in specialized consultation of genodermatoses in the Pediatric Hospital “Martyrs of Tunas” with diagnostic presumptive of neurofibromatosis type 1. In the presented case the proposed approaches and the molecular study of neurofibromatosis type 1 negative, they guided toward the diagnosis of Legius syndrome. This case demonstrates the importance of the modification of the diagnostic approaches of neurofibromatosis type 1, proposed in the methodology for the attention to patient with genodermatoses that avoids the diagnostic error.

Published in Clinical Medicine Research (Volume 14, Issue 3)
DOI 10.11648/j.cmr.20251403.15
Page(s) 80-84
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2025. Published by Science Publishing Group

Keywords

Legius Syndrome, Neurofibromatosis Type 1, Rasophaties, Genodermatoses

References
[1] Velázquez Y, Batista M, Espinosa D, Orraca M, Pérez D. Methodology for the integral attention to patient with genodermatoses. Multimed. [Internet] 2022; 26(6): e2668. Available:
[2] Sequeda J, Restrepo A, Pacheco C, Ñañez L. In pediatrics all pattern of stains coffee with milk is not neurofibromatosis. Concerning a case. Rev Hispano-Americ. Dermatol Pediatr. [Internet] 2024; 1(1): 30-35. Available:
[3] Online Mendelian Inheritance in Man. Neurofibormatosis type 1. OMIM. [Internet] 2024. Available:
[4] Portal of information of strange diseases and orphan medications. Neurofibromatosis type 1. Orphanet. [Internet] 2020. Available:
[5] Online Mendelian Inheritance in Man. Legius syndrome OMIM. [Internet] 2023. Available:
[6] Portal of information of strange diseases and orphan medications. Síndrome de Legius. Orphanet. [Internet] 2020. Available:
[7] Gómez M. T, Botero J. S, Tiettadentri L. O, Vélez M. A. Neurofibromatosis type 1: relationship genotype-phenotype. Records Neurol Colomb. [Internet] 2020; 6(2): 93-99. Available:
[8] Marzo T, Guerrero L, Lacosta J. Neurofibromatosis type 1. Presentation of a case. Have Scientific Information. [Internet] 2019; 98(3). Available:
[9] Velázquez Y, Rodríguez TP, Rodríguez L, Feria O, López Y. Proposal of modification of the diagnostic approaches of neurofibromatosis type 1. Multimed. [Internet] 2025;(29): e2670. Available:
[10] Brems H, Legius E. Legius síndrome, an Update. Molecular pathology of mutations in SPRED1. Keio J Med. [Internet] 2013; 62(4): 107-12. Available:
[11] Children’s Tumor Foundation Europe, European NF Group. Global NF Conference Highlights: Fueling the Drug Discovery Engine for NF. [Internet] 2024 Available:
[12] Legius E, Messiaen L, Wolkenstein P, Pancza P, Avery R. A, Berman Y, et al. Revised diagnostic criteria for neurofibromatosis type 1 and Legius syndrome: an international consensus recommendation. Genetics in Medicine. [Internet] 2021; 23: 1506–1513. Available:
[13] Velázquez Y, Valenciano C. R, Peña P. B, Fajardo Y. Validation of a methodology for the attention to patient with genodermatoses by means of the method Delphi. Foliates Dermatologic Cuban. [Internet] 2024; 18(2): e373 Available:
[14] Duat A, Martos G. A, Martín Y, Hernández A, Espejos J. M, Ruiz M. L, et al. Characteristic phenotypic and genetic in the neurofibromatosis type 1 in pediatric age. Annals of Pediatrics. Barcelona. [Internet] 2015; 83(3): 173-182. Available:
[15] García F. J, Herández A. Chronology of the diagnosis of the neurofibromatosis type 1 in the childhood. Records Dermo-Siphiliographic. [Internet] 2023; 114: 187-193. Available:
[16] Deloya F, García A. Neurofibromatosis type 1. Etiology, diagnostic and treatment. SCIENCE UANL. [Internet] 2024; 27(123): 31-36. Available:
[17] Herrero A. Rasophaties and their alterations cardiological in patient with confirmed genetic alteration. [Work of grade thesis in Medicine. University Salamanca. España] [Internet] 2022 Available:
[18] Orlandi V, Cavarzere P, Palma L, Gaudino R, Antoniazzi F. Central precocious puberty in a girl with Legius syndrome: an accidental association?. Italian Journal of Pediatrics. [Internet] 2021; 47: 50. Available:
[19] Sánchez S. B. Neurofibromatosis type 1 and Legius syndrome in the service of pediatrics of the hospital Miguel Servet and experience with the leaves of information. [Doctoral thesis. It programs of Doctorate in Medicine. University Zaragoza. España] [Internet] 2021 Available:
[20] Collazo T. Technical of molecular biology applied to the diagnosis of genetic diseases. Magazine Cuban of Community Genetics. [Internet] 2020; 13(1): e99. Available:
[21] Clark Y, Martínez A, Hernández Y, Feoktistova L, Orraca M, Morales E. Study clinical and molecular in Cuban patients with neurofibromatosis type 1. Magazine Cuban of Biomedical Investigations. [Internet] 2023; 42: e2459. Available:
Cite This Article
  • APA Style

    Avila, Y. V., Valenciano, C. R. R. (2025). Legius Syndrome Vs Neurofibromatosis Type 1, About a Case Report. Clinical Medicine Research, 14(3), 80-84. https://doi.org/10.11648/j.cmr.20251403.15

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    ACS Style

    Avila, Y. V.; Valenciano, C. R. R. Legius Syndrome Vs Neurofibromatosis Type 1, About a Case Report. Clin. Med. Res. 2025, 14(3), 80-84. doi: 10.11648/j.cmr.20251403.15

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    AMA Style

    Avila YV, Valenciano CRR. Legius Syndrome Vs Neurofibromatosis Type 1, About a Case Report. Clin Med Res. 2025;14(3):80-84. doi: 10.11648/j.cmr.20251403.15

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  • @article{10.11648/j.cmr.20251403.15,
      author = {Yordania Velázquez Avila and Carmen Rosa Rodríguez Valenciano},
      title = {Legius Syndrome Vs Neurofibromatosis Type 1, About a Case Report
    },
      journal = {Clinical Medicine Research},
      volume = {14},
      number = {3},
      pages = {80-84},
      doi = {10.11648/j.cmr.20251403.15},
      url = {https://doi.org/10.11648/j.cmr.20251403.15},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.cmr.20251403.15},
      abstract = {The genodermatoses is genetic diseases that affect to the skin and their old ones, in those which alone they influence hereditary mechanisms linked to the genes. The neurofibromatosis type 1 are a genodermatoses that belongs to the group of the Rasophaties, with brown formation of stains with milk and tumours in skin and nervous system. This diseases can be diagnose clinically with the presence of two clinical approaches. In the year 2001 a Rasophatie was described that previously it was considered a clinical form of the neurofibromatosis, but it was demonstrated by means of molecular studies that it is a different diseases and it was designated as Legius syndrome. This syndrome completes two of the current diagnostic approaches of the neurofibromatosis type 1, when presenting coffee with milk macula and axillary or inguinal ephelides, being difficult to differentiate them. Although at the moment molecular studies of sequence exist for the diagnosis of both rasopatías, in some countries it is a non-available technology. In Cuba, like part of a methodology for the attention to patient with genodermatoses, the proposal of modification of diagnostic approaches of neurofibromatosis type 1 were included, unifying in one single approach the presence of coffee with milk macula and axillary or inguinal ephelides. The presentation is made with the purpose of standing out the importance of modifying the diagnostic approaches of neurofibromatosis type 1, proposed in the methodology. An adolescent is described that presented coffee with milk macula, axillary ephelides and overturn for deficit of attention with hyperactivity, assisted in specialized consultation of genodermatoses in the Pediatric Hospital “Martyrs of Tunas” with diagnostic presumptive of neurofibromatosis type 1. In the presented case the proposed approaches and the molecular study of neurofibromatosis type 1 negative, they guided toward the diagnosis of Legius syndrome. This case demonstrates the importance of the modification of the diagnostic approaches of neurofibromatosis type 1, proposed in the methodology for the attention to patient with genodermatoses that avoids the diagnostic error.
    },
     year = {2025}
    }
    

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