RESUMO
Hydroxyurea (HU) is an antimetabolic agent commonly used in myeloproliferative disorders and hematological diseases as well as in severe psoriasis. Despite of usually be well tolerated, sometimes it can induce immunosuppression and mucocutaneous adverse effects associated with discomfort or pain. Nevertheless, oral mucosal adverse reactions are extremely uncommon and present as ulcers, tongue depapilation and dyschromia. Complete remission of adverse effects is usually observed after withdrawal of the medication. The aim of this paper is to report two patients with oral lesions related to HU treatment. T0 he patients were adequately managed by changing hydroxyurea with imatinib mesilate. Oral lesions are rare complications of long-term hydroxyurea treatment and may be an indication of stopping therapy and substitution with imatinib mesilate.
Assuntos
Adolescente , Adulto , Antineoplásicos/efeitos adversos , Doenças da Gengiva/induzido quimicamente , Humanos , Hidroxiureia/efeitos adversos , Leucemia Mielogênica Crônica BCR-ABL Positiva/tratamento farmacológico , Doenças Labiais/induzido quimicamente , Masculino , Doenças da Boca/induzido quimicamente , Soalho Bucal/efeitos dos fármacos , Mucosa Bucal/efeitos dos fármacos , Úlceras Orais/induzido quimicamente , Piperazinas/uso terapêutico , Pirimidinas/uso terapêutico , Doenças da Língua/induzido quimicamenteRESUMO
Tuberculosis (TB) is an infectious disease affecting humans of all ages in all parts of the world. The dentist plays an important role in the identification and control of this condition by early recognition of oral lesions that may precede the detection of the pulmonary form. Occurrence of increased incidence of mycobacterial infections as a part of the spectrum of AIDS only emphasizes the importance of early diagnosis. A case of a tuberculous ulcer on the tongue along with oral ulcerations, which occurred as a consequence of oral antituberculosis therapy (ATT), is presented. Such complications have rarely been reported in the literature and the management of these is described herein. The tuberculous ulcer healed uneventfully in five weeks after institution of ATT and the other ATT-induced ulcers healed after a week of topical anesthetic application. The clinical presentations, differential diagnoses to be considered, and management of such oral manifestations is discussed. The occupational risk posed by TB to the dentist and appropriate precautions to be observed have been highlighted.