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《Piel》2019,34(8):464-469
IntroductionTelangiectasia macularis eruptiva perstans (TMEP) is a rare cutaneous mastocytosis, characterised by erythematous and/or brown macula in which telangiectasia are identified. The diagnosis is based on the clinical state of the lesions and on histopathology; however dermoscopy is an important diagnostic tool, revealing a very characteristic reticular vascular pattern.MethodologyA clinical examination, dermatoscopy, photographic follow-up, and histological study were performed on 5 patients with erythematous brown spots on the neck and V of the neckline, and were seen in this Centre between 2008 and 2018. A polarised light dermatoscope was used on lesion and the skin around it. All patients had a 4 mm punch biopsy of the affected skin, and the slices were stained with haematoxylin-eosin and Giemsa.ResultsThe dermatoscopy of the 5 patients showed a retiform vascular pattern with surrounding and crossing yellow spots corresponding to the follicular sebaceous glands, with few hairs. The skin around the lesion did not show any of these changes. In all patients, biopsy with haematoxylin-eosin corroborated the diagnosis of mastocytosis type TMEP. The location of the disease in the 5 patients was in the neck and V of the neckline.ConclusionsDermatoscopy helps in the diagnosis of TMEP by demonstrating that the retiform telangiectatic vascular pattern is a constant finding in all affected patients, and this is supported by the dermoscopic-histological findings. It also makes it possible to differentiate with other erythematous skin disease, and with other disorders that dermatoscopically exhibit retiform patterns.  相似文献   
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利用科学、合理的监测手段对出生缺陷进行长期、持续的动态观察,有助于及时获悉缺陷发病率和疾病顺位的变化趋势,分析原因,为制定出生缺陷防控策略措施提供科学依据。本文综述了国内外出生缺陷的监测模式、监测病种和监测期限的工作进展。  相似文献   
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Purpose: To investigate how individual and environmental factors relate to self-reported participation profiles in adolescents with and without impairments or long-term health conditions. Methods: A person-oriented approach (hierarchical cluster analysis) was used to identify cluster groups of individuals sharing participation patterns in the outcome variables frequency perceived importance in domestic life and peer relations. Cluster groups were compared using one-way analysis of variance (ANOVA). Results: A nine-cluster solution was chosen. All clusters included adolescents with impairment and long-term health conditions. Perceived importance of peer relations was more important than frequent attendance in domestic-life activities. Frequency of participation in dialogues and family interaction patterns seemed to affect the participation profiles more than factors related to body functions. Conclusion: Type of impairment or long-term health condition is a weaker determinant of membership in clusters depicting frequency and perceived importance in domestic life or peer relations than dialogue and family environment.  相似文献   
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Hepatitis D virus(HDV) is a global health threat with more than 15 million humans affected. Current treatment options are largely unsatisfactory leaving chronically infected humans at high risk to develop liver cirrhosis and hepatocellular carcinoma. HDV is the only human satellite virus known. It encodes only two proteins, and requires Hepatitis B virus(HBV) envelope protein expression for productive virion release and spread of the infection. How HDV could evolve and why HBV was selected as a helper virus remains unknown. Since the discovery of Na+-taurocholate co-transporting polypeptide as the essential uptake receptor for HBV and HDV, we are beginning to understand the interactions of HDV and the immune system. While HBV is mostly regarded a stealth virus, that escapes innate immune recognition, HBV-HDV coinfection is characterized by a strong innate immune response. Cytoplasmic RNA sensor melanoma differentiation antigen 5 has been reported to recognize HDV RNA replication and activate innate immunity. Innate immunity, however, seems not to impair HDV replication while it inhibits HBV. In this review, we describe what is known up-to-date about the interplay between HBV as a helper and HDV's immune evasion strategy and identify where additional research is required.  相似文献   
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目的 针对口内反光镜清洗消毒存在的不足,自行研发口内反光镜专用清洗篮筐,探讨其应用后的清洗消毒效果。方法 选取全新大号口内反光镜480件,随机分成2组,每组各240件,临床上依次使用后统一送消毒供应中心进行机械热力清洗消毒,实验组采用自制的口内反光镜专用清洗篮筐装载清洗消毒,对照组采用普通清洗篮筐装载清洗消毒,比较两组目测清洗合格率、三磷酸腺苷生物荧光阳性率、划痕率、装载量等指标。结果 实验组目测清洗合格率为97.91%,对照组为80.41%,两组比较,差异有统计学意义(χ 2=38.045,P<0.001)。实验组三磷酸腺苷生物荧光测试阳性率为0.84%,对照组为18.75%,两组比较,差异有统计学意义(χ 2=43.611,P<0.001)。第1次清洗消毒后,实验组划痕率为0.42%,对照组为15.00%,两组比较,差异有统计学意义(χ 2=35.813,P<0.001)。第2次清洗消毒后,实验组划痕率仍为0.42%,对照组为26.67%,两组比较,差异有统计学意义(χ 2=70.625,P<0.001)。实验组一次最多可装载120件口内反光镜,对照组一次只能装载9件口内反光镜。结论 在机械热力清洗消毒口内反光镜时采用口内反光镜专用清洗装载篮筐,可以明显提高清洗消毒质量及装载量,同时有效减少划痕。  相似文献   
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