Potentially malignant epithelial oral lesions: discrepancies between clinical and histological diagnosis

OBJECTIVE: To evaluate the discrepancy index between the clinical and histological diagnosis and the prevalence of epithelial dysplasia and carcinoma in 45 patients with potentially malignant epithelial oral lesions (PMEL).PATIENTS AND METHODS: We submitted 45 patients with PMEL to clinical examination and obtained a biopsy from each. The results of histological diagnosis were compared to the clinical diagnosis.
RESULTS: Clinical diagnosis showed that the most common PMEL was leukoplakia followed by lichen planus and by actinic cheilitis associated with leukoplakia. The most common site was the buccal mucosa. Histological diagnosis revealed that 46.7% of the PMEL were lichen planus. The discrepancy index between clinical and histological diagnosis was 24.4%. The higher discrepancy index occurred among leukoplakias. The prevalence of epithelial dysplasia and carcinoma was 17.8%.
CONCLUSIONS: We conclude that all PMEL should be submitted to a microscopic analysis because the discrepancy between clinical and histological diagnosis was present in a quarter of these lesionS. Otherwise, the epithelial dysplasia and carcinoma were more frequent in the leukoplakias.     

Severe combined immunodeficiency with abnormalities in expression of the common leucocyte antigen, CD45

Children presenting with disseminated viral infections should be carefully investigated because they almost invariably have an underlying immunodeficiency. A child is reported who had disseminated cytomegalovirus and a novel form of severe combined immunodeficiency with abnormal expression of the common leucocyte antigen, CD45.     

Management of anticoagulated patients in dentoalveolar surgery: a clinical comparative study

This prospective, comparative, clinical study analyzed the postoperative bleeding risk of patients on anticoagulation therapy (AT) who were undergoing toot     

红花注射液对大鼠心脏能荷值及抗凋亡基因bcl-2的影响

目的 探讨红花注射液的心脏保护作用及其对心肌组织能荷值、抗细胞凋亡基因bcl-2的影响。方法 采用大鼠Langendorff离体心脏灌注模型,在改良的Euro-Collins心脏保存液(mEC液)中添加红花注射液与单纯mEC液作对照,观察其对保存心脏的心功能、能荷值及bcl-2表达的影响。结果 与对照组比较红花注射液可改善大鼠心脏的收缩和舒张功能,增加冠脉流量,增强bcl-2的蛋白表达。结论 红花注射液具有很好的心脏保护作用。     

Cytokines in haemolytic uraemic syndrome associated with verocytotoxin-producing Escherichia coli infection

The proinflammatory cytokines tumour necrosis factor-alpha (TNF-alpha) interleukin (IL)-1 beta, IL-6, and IL-8 were measured in plasma and urine samples from 19 children with verocytotoxin-producing Escherichia coli (VTEC) induced haemolytic uraemic syndrome (HUS) and 30 controls. TNF-alpha was detected in the plasma of two cases and one control; IL-6 in the plasma of one, and the urine of two cases, and in the plasma of one control. IL-1 beta and IL-8 were each identified in eight of the 19 cases and in one and two controls respectively. Urinary IL-8 was found in seven cases, four of whom had plasma concentrations below the limit of detection suggesting renal secretion of this cytokine. Cytokine concentrations did not correlate with peripheral blood neutrophil count at onset of disease. These data confirm the systemic release of cytokines responsible for the coordination of acute inflammatory processes in some children with VTEC induced HUS.     

Objective measurement of muscle rigidity in parkinsonian patients treated with subthalamic stimulation

Deep brain stimulation (DBS) of the subthalamic nucleus (STN) has been shown to be an effective treatment for Parkinson's disease (PD). The intraoperative positioning of DBS electrodes and postoperative adjustment of the stimulation parameters, however, require continuous, precise evaluation. Moreover, ambulatory measurements of the symptoms would also help to evaluate changes in the progression of PD in these patients. To this aim, we objectified rigidity measurements via surface EMG recordings of the Mm. biceps (bic) and triceps brachii (tric) in patients treated with chronic stimulation of the STN. We show that cessation and initiation of DBS have effects on the EMG profile during standardized extension and flexion movements in the elbow joint. These data correlate significantly with clinical ratings. Thus, EMG recordings of the Mm. bic and tric during this standardized extension‐flexion movement can be used to objectively measure rigidity and to monitor its course over time. In view of its low technical requirements, this technique lends itself to use during DBS implantation surgery and in the clinical environment. © 2008 Movement Disorder Society