RESUMO
OBJECTIVE: To determine the rate of occurrence and genotypes of Epstein-Barr Virus (EBV) among pediatric renal and liver transplants recipients. DESIGN: Observational study. SETTING: Vision Research Foundation referral center and Institute of Liver Disease and Transplantation, Chennai, India. PARTICIPANTS: 70 pediatric solid organ transplant recipients and 60 voluntary healthy donors. METHODS: Polymerase chain reaction (PCR) for detection and genotyping of EBV were carried out using genes targeting Viral capsid antigen, Nuclear antigen 1, 2 and 3, followed by real time PCR for viral load determination and further confirmed by phylogenetic analysis. RESULTS: EBV was detected in 35 (51.4%) samples (32 liver and 4 renal transplants) with high viral load. Type A was detected in 33 samples, Type B in 2 liver transplant patients, and co-infection in one liver transplant patient who developed Post-transplant Lymphoproliferative Disorder (PTLD). Real time PCR results correlated with conventional PCR. The mean viral load for patients who did not develop PTLD was 50,424 copies/mL. Overall EBV load in patient with PTLD ranged from 1,40,392 copies/mL prior to PTLD diagnosis to 62,124 copies /mL post treatment. CONCLUSION: EBV infection is the high risk factor for PTLD after liver transplantation. PCR targeting of EBV can be applied to diagnose EBV infections and monitor treatment for EBV in pediatric solid organ transplant recipients.
Assuntos
Infecções por Vírus Epstein-Barr/virologia , Herpesvirus Humano 4/genética , Transplante de Rim/efeitos adversos , Transplante de Fígado/efeitos adversos , Transplantes/virologia , Adolescente , Adulto , Infecções por Vírus Epstein-Barr/etiologia , Infecções por Vírus Epstein-Barr/transmissão , Humanos , Índia/epidemiologia , Reação em Cadeia da Polimerase , Transplantados/estatística & dados numéricos , Adulto JovemRESUMO
Bowen's disease is generally regarded as premalignant dermatoses. The disease affects both skin and the mucosa and has the potential to progress to invasive squamous cell carcinoma. There are descriptions of several histological variants of Bowen's disease like psoriasiform, atrophic, pagetoid, etc. Acantholysis of anaplastic keratinocytes with bullae/cleft formation is described in premalignant condition like actinic keratosis and adenoid variant of squamous cell carcinoma, but there is lack of report describing this phenomena in Bowen's disease. We present a case of unusual acantholytic variant of Bowen's disease with focus of micro-invasive carcinoma.
RESUMO
Ovarian tumors have occasionally been reported in pregnant women, the incidence as per literature being 1 in 81 to 1 in 2000 pregnancies. Out of this, about 2-5% are malignant, thus contributing to the rarity of malignant ovarian tumors in pregnant women. One such occurrence in a 24-year old female patient is reported here considering its extreme rarity.
