Association of segmental neurofibromatosis 1 and oculo-auriculo-vertebral spectrum in a 24-year-old female

Marco Castori, Silvia Majore, Francesco Romanelli, Biagio Didona, Paola Grammatico, Giovanna Zambruno

Research output: Contribution to journalArticle

Abstract

Segmental neurofibromatosis 1 (SNF1) is a rare genodermatosis caused by somatic mutations in the NF1 gene. It consists of localized characteristic pigmentary lesions (i.e. café-au-lait spots and freckling) and/or neurofibromas intermingled with areas of unaffected skin, often configuring specific mosaic patterns. Oculo-auriculo-vertebral spectrum (OAVS) is a developmental field defect primarily affecting the 1st and 2 nd branchial arch derivatives. This condition recognizes a wide range of environmental and genetic causes, including postzygotic mutations. We report on a 24-year-old female presenting with a constellation of features fitting both with SNF1 and OAVS. Neurofibromatosis 1 pigmentary lesions are confined to the left arm and adjacent trunk skin surface with sharp midline demarcation. OAVS characteristic craniofacial anomalies, including neurosensorial hearing loss, hemimandibular and tongue underdevelopment, are homolateral to the SNF1 features. Additional findings, such as prearicular tags and multiple costo-vertebral segmentation defects, mainly involving the cervical and upper thoracic metameres, support the diagnosis of OAVS. To our knowledge, this is the first published patient who presents with an association of SNF1 and OAVS. The spatial relationship between craniofacial and skin pigmentary anomalies has prompted us to speculate about the possible underlying pathogenetic mechanism (s).

Original languageEnglish
Pages (from-to)22-25
Number of pages4
JournalEuropean Journal of Dermatology
Volume18
Issue number1
DOIs
Publication statusPublished - Jan 2008

    Fingerprint

Keywords

  • Body asymmetry
  • Goldenhar syndrome
  • Mosaicism
  • Oculoauriculo-vertebral spectrum
  • Segmental neurofibromatosis 1
  • Somatic mutation

ASJC Scopus subject areas

  • Dermatology

Cite this