Chang P

Language: Spanish
References: 10
Page: 234-242
PDF size: 444.25 Kb.

ABSTRACT

Background: Nail discoloration is frequently observed and its understanding is important in etiolofy of nail dyschromia.
Objetives: To report the clinical experience in nail dyschromia. in Guatemala City. All patients were studied during May 2009 and were included regardless of age, sex or disease that caused hospitalization. We performed a carefull dermatological examination on fingernails and toenails in all patients just detecting chromonychia.
Results: One hundred patients were studied, sixtythree were male (63%) and 37% females. Nail dyschromia in toenails was predominant —it was found in 95% patients, while on fingernails in 41%. Toenail onychomycosis was the most frequent cause, in 59 cases (62.1%). Yellow was the most common color —28 cases (29.7%)—, then yellowish-whitish —17 cases (17.8%)—, yellow-blackish on fingernails in 9 cases (9.47 %) and whitish in 5 cases (5.26 %). We also found racial melanonychia in 10 patients (9.5%); frictional melanonychia in 8 cases (8.4%), and melanonychia due to cytostatic drugs and onychogryphosis in 6 cases (6.3%). Other colors were red, white and brown. Black chromonychia was common: racial melanonychia, 9 cases (21.9%), and due to cytostatics, 4 cases (9.75%). Splinter hemorrhage and hematoma were present in 4 cases (9.75%) and the red color was present in 3 patients due to splinter hemorrhage and hematoma (7.31%).
Conclusions: Nail dyschromia is a common condition in 95%, it is due to toenail onychomycosis (62.1%) with a hue of colors: yellow, whitish yellowish, blackishyellowish and white. On fingernails, the black color was most frequently caused by racial melanoniquia and cytostatics drugs.

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