Nail plate and soft tissue abnormalities

Robert Baran, Rodney P.R. Dawber, Eckart Haneke, Antonella Tosti

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Scopus citations


Onycholysis refers to the detachment of the nail from its bed at its distal and/or lateral attachments (Figure 4.1). The pattern of separation of the plate from the nail bed takes many forms. Sometimes it resembles closely the damage from a splinter under the nail, the detachment extending proximally along a convex line, giving the appearance of a half-moon. When the process reaches the matrix, onycholysis becomes complete. Involvement of the lateral edge of the nail plate alone is less common. In certain cases the free edge rises up like a hood, or coils upon itself like a roll of paper. Onycholysis creates a subungual space which gathers dirt and keratinous debris; the greyish-white colour is due to the presence of air under the nail but the colour may vary from yellow to brown, depending on the aetiology. This area is sometimes malodorous.

Original languageEnglish (US)
Title of host publicationA Text Atlas of Nail Disorders
Subtitle of host publicationTechniques in Investigation and Diagnosis
PublisherCRC Press
Number of pages18
ISBN (Electronic)9781482207286
ISBN (Print)9781841840963
StatePublished - Jan 1 2003
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)


Dive into the research topics of 'Nail plate and soft tissue abnormalities'. Together they form a unique fingerprint.

Cite this