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Cutaneous neurofibromas: Current clinical and pathologic issues.

Nicolas Ortonne1, Pierre Wolkenstein2, Jaishri O Blakeley1

  • 1From the Departments of Pathology (N.O.) and Dermatology (P.W.), French Referral Center for Neurofibromatoses, Henri-Mondor Hospital, AP-HP, University Paris Est Créteil, France; Department of Neurology (J.O.B., S.K.V.), Johns Hopkins University School of Medicine, The Neurofibromatosis Therapuetic Acceleration Program, Baltimore, MD; University of Alabama at Birmingham (B.K.); Cancer Center and Department of Neurology (S.R.P.) and Department of Pathology, Division of Neuropathology (A.S.-R.), Massachusetts General Hospital, Boston; The Neurofibromatosis Institute (V.M.R.), La Crescenta, CA; Department of Pathology & Anatomical Sciences (D.C.M.), University of Missouri School of Medicine, Columbia; Manchester Centre for Genomic Medicine (S.H.), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, UK; Institute of Biomedicine (J.P.), University of Turku, Finland; Department of Pathology and Laboratory Medicine (A.R.), Jackson Memorial Hospital/University of Miami Miller School of Medicine, FL; Department of Pathology and Laboratory Medicine (S.L.C.), Medical University of South Carolina, Charleston; Clinics and Polyclinics of Neurology (V.M.), University Hospital Hamburg-Eppendorf, Hamburg, Germany; and Division of Cancer and Genetics (M.U.), Institute of Medical Genetics, Cardiff University, UK.

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Summary
This summary is machine-generated.

Neurofibromatosis 1 (NF1) cutaneous neurofibromas (cNF) are skin-limited tumors. Understanding their distinct features is crucial for developing accurate diagnostic criteria and effective therapies for NF1 patients.

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Area of Science:

  • Oncology
  • Dermatology
  • Genetics

Background:

  • Neurofibromatosis 1 (NF1) is a genetic disorder characterized by tumor development.
  • Cutaneous neurofibromas (cNF) are common manifestations of NF1, primarily affecting the skin.

Purpose of the Study:

  • To consolidate current understanding of NF1 cNF terminology and natural history.
  • To establish a clinicopathologic framework for cNF.

Main Methods:

  • Expert review of existing terminology for cNF.
  • Analysis of clinical, histologic, and radiographic features using diverse data sources.

Main Results:

  • cNF are distinguished from other neurofibromas by their skin-limited nature.
  • Detailed discussion of cellular, molecular, histologic, and clinical characteristics of cNF.
  • Identification of overlapping features between cNF and other neurofibromas.

Conclusions:

  • Accurate diagnosis of cNF requires clear criteria encompassing clinical and histologic features.
  • Distinguishing cNF from other neurofibromas necessitates interdisciplinary collaboration and validation.
  • The study aims to improve diagnosis and guide therapeutic development for cNF.