An Epstein-Barr virus-associated lymphoproliferative lesion of the skin presenting as recurrent necrotic papulovesicles of the face
ABSTRACT We describe four patients with lymphoproliferative lesions confined to the skin for several years. They presented with recurrent necrotic papulovesicles of the face. Latent Epstein-Barr virus (EBV) infection was detected in the lymphoid cells from the skin lesions by in situ hybridization. The disease in three patients progressed to T-cell lymphoma. We believe that these patients represent a subset of peripheral T-cell lymphoma with a tendency to localize in the skin.
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ABSTRACT: Primary infection with Epstein-Barr virus (EBV) is usually asymptomatic and, in a normal host, EBV remains latent in B cells after primary infection for the remainder of life. Uncommonly, EBV can infect T or natural killer (NK) cells in a person with a defect in innate immunity, and EBV infection can cause unique systemic lymphoproliferative diseases (LPD) of childhood. Primary infection in young children can be complicated by hemophagocytic lymphohistiocytosis or fulminant systemic T-cell LPD of childhood. Uncommonly, patients can develop chronic active EBV (CAEBV) disease-type T/NK LPD, which includes CAEBV infection of the systemic form, hydroa vacciniforme-like T-cell LPD, and mosquito-bite hypersensitivity. The clinical course of CAEBV disease-type T/NK LPD can be smoldering, persistent or progressive, depending on the balance between viral factors and host immunity. Aggressive NK-cell leukemia, hydroa vacciniforme-like T-cell lymphoma, or uncommonly extranodal NK/T-cell lymphoma can develop in children and young adults with CAEBV disease-type T/NK-cell LPD. Extranodal T/NK-cell lymphoma is a disease of adults, and its incidence begins to increase in the third decade and comprises the major subtype of T/NK LPD throughout life. Aggressive NK-cell leukemia and nodal T/NK-cell lymphoma of the elderly are fulminant diseases, and immune senescence may be an important pathogenetic factor. This review describes the current progress in identifying different types of EBV-associated T/NK-cell LPD and includes a brief presentation of data from Korea.The Journal of Dermatology 01/2014; 41(1):29-39. DOI:10.1111/1346-8138.12322 · 2.35 Impact Factor
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ABSTRACT: : Epstein-Barr virus (EBV) is a ubiquitous double-stranded DNA gamma herpes virus and it is present in 95% of adults. EBV infection is seen in many oncological conditions, although there is controversy regarding whether EBV is causative, a cofactor, or just a coincidental infection. Some of these conditions involve the skin as the main or as a secondary organ. In this report, we review several tumoral and nontumoral cutaneous conditions, which are related to EBV infection, and describe the epidemiology of infection and the life cycle of the virus.The American Journal of dermatopathology 12/2013; 35(8):763-786. DOI:10.1097/DAD.0b013e318287e0c6 · 1.43 Impact Factor
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ABSTRACT: Os linfomas do trato nasossinusal são neoplasias incomuns, que reconhecidamente causam importantes lesões destrutivas no nariz e terço médio da face. Sua raridade pode levar os profissionais da área médica a erros no diagnóstico clínico, além de representar um verdadeiro desafio aos patologistas, por sua natureza inflamatória. OBJETIVO: O objetivo deste estudo é determinar os aspectos clínicos e histopatológicos do linfoma não-Hodgkin (LNH) do trato nasossinusal, correlacionando sítio tumoral e comportamento biológico com os subtipos do LNH. FORMA DE ESTUDO: Estudo de série. MATERIAL E MÉTODO: Foi realizada uma análise retrospectiva que incluiu 7 pacientes atendidos no ambulatório do serviço de otorrinolaringologia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, no período de 1985 a 2003. RESULTADOS: As linhagens de células B e T/NK têm comportamento biológico diferente, assim como o sítio e apresentação clínica, sendo o diagnóstico histopatológico de extrema importância. CONCLUSÃO: A biópsia realizada adequadamente favorecerá um diagnóstico mais precoce e preciso, instituindo rapidamente a terapêutica adequada e melhorando o prognóstico e a sobrevida destes pacientes.Revista Brasileira de Otorrinolaringologia 06/2004; 70(3):306-309.