Nails

• median nail dystrophy
  31 March

  Images
  Median nail dystrophy : parakeratosis and accumulation of melanin in nail bed keratinocytes https://twitter.com/JJSpeiserMD/status/846712238689959942

• fungal melanonychia
  21 March

  Images
  longitudinal melanonychia https://twitter.com/JAADjournals/status/844174360533520384
  See also
  melanonychia melanocytic melanonychia subungueal melanoma

• longitudinal melanonychia
  2 March

  Images
  Longitudinal melanonychia https://twitter.com/JRKaley/status/837079357952667652 https://twitter.com/JAADjournals/status/844174360533520384
  Etiology
  fungal melanonychia
  melanocytic melanonychia subungueal melanoma

• ungueal anomalies
  17 February

  Images
  Unilateral trachyonychia https://twitter.com/JAADjournals/status/832593060928376836
  See also
  ungueal anomalies

• trachyonychia
  17 February

  Images
  Unilateral trachyonychia https://twitter.com/JAADjournals/status/832593060928376836
  See also
  ungueal anomalies

• ungueal anomalies in psoriasis
  10 October 2016

  NAIL INVOLVEMENT
  seen in up to 50% of psoriasis patients, more common in patients with psoriatic arthropathy
  histopath -> psoriasiform onychitis with spongiform pustulation, negative fungal special stains (see photos)
  differential -> onychomycosis, eczematous onychitis, Reiter syndrome
  See also
  psoriasis

• periungual fibroma
  28 May 2010

  periungual fibromas

• hyponychia congenita
  11 November 2006

  Pathology
  RSPO4 germline mutations in inherited anonychia and hyponychia congenita (MIM.206800)
  References
  Blaydon DC, Ishii Y, O’toole EA, Unsworth HC, Teh MT, Ruschendorf F, Sinclair C, Hopsu-Havu VK, Tidman N, Moss C, Watson R, de Berker D, Wajid M, Christiano AM, Kelsell DP. The gene encoding R-spondin 4 (RSPO4), a secreted protein implicated in Wnt signaling, is mutated in inherited anonychia. Nat Genet. 2006 Nov;38(11):1245-7. PMID: (...)

• anonychia
  11 November 2006

  Pathology
  RSPO4 germline mutations in inherited anonychia and hyponychia congenita (MIM.206800)
  References
  Blaydon DC, Ishii Y, O’toole EA, Unsworth HC, Teh MT, Ruschendorf F, Sinclair C, Hopsu-Havu VK, Tidman N, Moss C, Watson R, de Berker D, Wajid M, Christiano AM, Kelsell DP. The gene encoding R-spondin 4 (RSPO4), a secreted protein implicated in Wnt signaling, is mutated in inherited anonychia. Nat Genet. 2006 Nov;38(11):1245-7. PMID: (...)

• periungueal necrosis
  15 December 2005

  See also
  nails

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