Chromonychia

Chromonychia

Chromonychia is a term used to indicate an abnormality in color of the substance and/or surface of the nail plate and/or subungual tissues.[1]:658

Chromonychia can be induced by antineoplastic drugs with few distinct forms, the most frequently seen is melanonychia.[2]. Although a few cytostatics may cause these changes, the drugs most commonly involved are adriamycin, cyclophosphamide and vincristine, or in polychemotherapy[3][4]

Also chromonychia is associated with AIDS. A significant association (p<0.05) was found between chromonychia and CD4 counts of below 200 per cubic millimeter[5].

References

  1. ^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0071380760.
  2. ^ Unamuno P, Fernández-López E, Santos C (July 1992). "Leukonychia due to cytostatic agents". Clin. Exp. Dermatol. 17 (4): 273–4. doi:10.1111/j.1365-2230.1992.tb02166.x. PMID 1451320. 
  3. ^ Chapman S, Cohen PR (April 1997). "Transverse leukonychia in patients receiving cancer chemotherapy". South. Med. J. 90 (4): 395–8. PMID 9114829. http://meta.wkhealth.com/pt/pt-core/template-journal/lwwgateway/media/landingpage.htm?issn=0038-4348&volume=90&issue=4&spage=395. 
  4. ^ Dasanu, Constantin A; Vaillant, JG; Alexandrescu, DT (October 31, 2006). "Distinct patterns of chromonychia, Beau's lines, and melanoderma seen with vincristine, adriamycin, dexamethasone therapy for multiple myeloma". Dermatology Online Journal 12 (6): 10. PMID 17083890. http://dermatology.cdlib.org/126/case_reports/nail/dasanu.html. 
  5. ^ Monsel G, Ly F, Canestri A, Diousse P, Ndiaye B, Caumes E (March 2008). "[Prevalence of skin disorders in HIV patients in Senegal and relationship to degree of immunosuppression]" (in French). Ann Dermatol Venereol 135 (3): 187–93. doi:10.1016/j.annder.2007.11.022. PMID 18374849. 



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Look at other dictionaries:

  • chromonychia — noun An abnormality in colour of the nail plate and/or subungual tissues, sometimes induced by antineoplastic drugs …   Wiktionary

  • chromonychia — Abnormality in the color of the nails. [chromo + G. onyx (onych ), nail] * * * chro·mo·nych·ia (kro″mo nikґe ə) discoloration of the nails, such as in leukonychia or melanonychia …   Medical dictionary

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