13. Tumors of the Nail Apparatus and Adjacent Tissues

  1. Robert Baran MD5,6,
  2. David A. R. de Berker MD7,
  3. Mark Holzberg MD8 and
  4. Luc Thomas MD, PhD9
  1. Luc Thomas MD, PhD9,
  2. Elvin G. Zook1,
  3. Eckart Haneke2,
  4. Jean-Luc Drapé3,
  5. Robert Baran MD5,6 and
  6. Jürgen F. Kreusch MD, PhD4

Published Online: 23 MAY 2012

DOI: 10.1002/9781118286715.ch13

Baran & Dawber's Diseases of the Nails and their Management, Fourth Edition

Baran & Dawber's Diseases of the Nails and their Management, Fourth Edition

How to Cite

Thomas, L., Zook, E. G., Haneke, E., Drapé, J.-L., Baran, R. and Kreusch, J. F. (2012) Tumors of the Nail Apparatus and Adjacent Tissues, in Baran & Dawber's Diseases of the Nails and their Management, Fourth Edition (eds R. Baran, D. A. R. de Berker, M. Holzberg and L. Thomas), Blackwell Publishing Ltd., Oxford, UK. doi: 10.1002/9781118286715.ch13

Editor Information

  1. 5

    University of Franche-Comté, Cannes, France

  2. 6

    Gustave Roussy Cancer Institute, Villejuif Nail Disease Center, Cannes, France

  3. 7

    Bristol Dermatology Centre, Bristol Royal Infirmary, Bristol, UK

  4. 8

    Department of Dermatology, Emory University School of Medicine, Atlanta, GA, USA

  5. 9

    Department of Dermatology, Lyon 1 University, Centre Hospitalier Lyon Sud, Pierre Bénite, France

Author Information

  1. 1

    Plastic Surgery Institute, Southern Illinois University, School of Medicine, Springfield, IL, USA

  2. 2

    Dermatology Department, University Hospital, Bern, Switzerland

  3. 3

    Department of Radiology, Hôpital Cochin, University Paris Descartes, Paris, France

  4. 4

    Moislinger Allée 95, 23558 Lübeck, Germany

  5. 5

    University of Franche-Comté, Cannes, France

  6. 6

    Gustave Roussy Cancer Institute, Villejuif Nail Disease Center, Cannes, France

  7. 9

    Department of Dermatology, Lyon 1 University, Centre Hospitalier Lyon Sud, Pierre Bénite, France

Publication History

  1. Published Online: 23 MAY 2012
  2. Published Print: 6 JUL 2012

ISBN Information

Print ISBN: 9780470657355

Online ISBN: 9781118286715

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Keywords:

  • bone tumors;
  • glomus cell tumors;
  • imaging;
  • melanoma;
  • melanonychia striata;
  • mucoid cyst;
  • nail unit tumors;
  • pathology;
  • squamous cell carcinoma;
  • wart

Summary

Many tumors are encountered in the nail unit. All components of the nail apparatus produce tumors that exhibit benign behavior in the vast majority of cases. However, the malignant counterpart of every tumor type also exists. Tumors of the nail unit may correspond to tumor types also present elsewhere on skin such as warts, nevi, melanoma and squamous cell carcinoma. In this case their clinical presentation is often influenced by the anatomy and physiology of the nail: longitudinal bands, subungual tumoral syndrome. Some tumors are also present on the rest of skin but are more frequent on the nail unit, such as glomus-cell tumor. Lastly, some tumors are quite specific to the nail unit either because they derive from an adjacent structure that influences the nail plate outgrowth, such as exostoses enchondromas, or because they derive from a nail-specific tissue, such as onychomatricomas. All these particularities of nail apparatus tumors create a specific semiology (melanonychia striata, for example) and often a specific diagnostic strategy (dermoscopy, magnetic resonance imaging, specific biopsy techniques) and, in many cases, a site-specific treatment (conservative melanoma surgery, for example).