Acquired Melanonychia in Chilean Patients with Essential Thrombocythemia Treated with Hydroxyurea: A Report of 7 Clinical Cases and Review of the Literature | Zendy

Nigel P Murray | Zendy; Pablo Tapía | Zendy; José Porcell | Zendy; Maximiliano Echavarria | Zendy; Hernán Suazo | Zendy

Open Access

Acquired Melanonychia in Chilean Patients with Essential Thrombocythemia Treated with Hydroxyurea: A Report of 7 Clinical Cases and Review of the Literature

Author(s) -

Nigel P Murray,

Pablo Tapía,

José Porcell,

Maximiliano Echavarria,

Hernán Suazo

Publication year - 2013

Publication title -

isrn dermatology

Language(s) - English

Resource type - Journals

eISSN - 2090-4606

pISSN - 2090-4592

DOI - 10.1155/2013/325246

Subject(s) - essential thrombocythemia , hydroxycarbamide , medicine , dermatology , incidence (geometry) , chemotherapy , surgery , polycythemia vera , physics , optics

Longitudinal melanonychia has been associated with a range of drugs, especially chemotherapeutic agents. We report 7 cases of melanonychia associated with the use of hydroxycarbamide for essential thrombocythemia. Of a patient population of 27, 7 (26%) developed melanonychia over a period of 2–7 years, and was not dose dependent. The high incidence of melanonychia in Chilean patients may be in part due to their Hispanic descent or to the high levels of UV radiation found in Santiago.

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