· AIM: To describe a new surgical technique for managing dislocated sclerotic cataractous lens.· METHODS: Six patients with advanced posteriorly dislocated cataracts were operated at a tertiary care centre a...· AIM: To describe a new surgical technique for managing dislocated sclerotic cataractous lens.· METHODS: Six patients with advanced posteriorly dislocated cataracts were operated at a tertiary care centre and analyzed retrospectively. After standard 3 port23 G pars plana vitrectomy and perfluorocarbon liquid(PFCL) injection, the dislocated white cataract was held with occlusion using phaco fragmatome and then chopped into smaller pieces with a sharp tipped chopper using 25 G chandelier endoilluminator. Each piece was emulsified individually. Following aspiration of PFCL,Fluid Air Exchange was done in all the cases and surgery completed uneventfully.·RESULTS: Best corrected visual acuity(BCVA) in all the patients was better than 6/12 after one month of follow up. No serious complications were noted till minimum 6mo of follow up.·CONCLUSION: Four port posterior segment nucleotomy with a chandelier endoilluminator, fragmatome and a chopper appears to be a safe, easy and effective procedure for managing dislocated sclerotic cataractous nuclei. Ultrasonic energy used and adverse thermal effects of the fragmatome on the sclera may be lesser.展开更多
BACKGROUND Marginal zone lymphoma(MZL)is an indolent non-Hodgkin B cell lymphoma with various architectural pattern including perifollicular,follicular colonization,nodular,micronodular,and diffuse patterns.A scleroti...BACKGROUND Marginal zone lymphoma(MZL)is an indolent non-Hodgkin B cell lymphoma with various architectural pattern including perifollicular,follicular colonization,nodular,micronodular,and diffuse patterns.A sclerotic variant has not been previously reported and represents a diagnostic pitfall.CASE SUMMARY A 66-year-old male developed left upper extremity swelling.Chest computed tomography(CT)in September 2020 showed 14 cm mass in left axilla.Needle core biopsy of axillary lymph node showed sclerotic tissue with atypical B lymphoid infiltrate but was non-diagnostic.Excisional biopsy was performed for diagnosis and showed extensive fibrosis and minor component of infiltrating B cells.Flow cytometry showed a small population of CD5-,CD10-,kappa restricted B cells.Monoclonal immunoglobulin heavy chain and light chain gene rearrangement were identified.Upon being diagnosed with MZL,patient was treated with rituximab,cyclophosphamide,doxorubicin,vincristine,and prednisone and achieved complete remission by positron emission tomography/CT.CONCLUSION This is an important case report because by morphology this case could have easily been overlooked as non-specific fibrosis with chronic inflammation representing a significant diagnostic pitfall.Moreover,this constitutes a new architectural pattern.While sclerotic lymphomas have rarely been described(often misdiagnosed as retroperitoneal fibrosis),we do not know of any cases describing this architectural presentation of MZL.展开更多
目的 ：探讨超声引导下注射硬化剂聚桂醇治疗甲状腺囊肿的临床疗效及安全性。方法 ：采用超声引导经皮穿刺囊腔内注射聚桂醇,治疗甲状腺囊肿共78例。治疗前所有囊肿均接受甲状腺穿刺及细胞病理学检查,以排除恶性病变。治疗时尽量将囊液...目的 ：探讨超声引导下注射硬化剂聚桂醇治疗甲状腺囊肿的临床疗效及安全性。方法 ：采用超声引导经皮穿刺囊腔内注射聚桂醇,治疗甲状腺囊肿共78例。治疗前所有囊肿均接受甲状腺穿刺及细胞病理学检查,以排除恶性病变。治疗时尽量将囊液抽吸净,然后注入约1/3囊腔容积量的聚桂醇进行硬化治疗,每周1次,根据囊肿的缩小情况,共治疗1-4次。结果：178例囊肿共进行166次硬化治疗,3个月后囊肿容积平均缩小71.6%±35.3%,与治疗前相比有显著差异（P〈0.01）;治疗总有效率84.6%（66/78）,治愈率52.6%（41/78）;2不同容积大小的囊肿治愈率有统计学差异（P〈0.01）,容积〉5 m L的囊肿治愈率显著高于容积〈5 m L者（P〈0.01）,但不同容积囊肿的治疗有效率无统计学差异（P〉0.05）;3治疗前后患者甲状腺功能及甲状腺相关抗体滴度无显著变化;4治疗的并发症发生率低,无严重不良反应。结论：超声引导下注射聚桂醇治疗甲状腺囊性病变简单易行、临床效果好,不良反应少,可作为甲状腺囊肿的首选治疗方法之一。展开更多
目的使用激光扫描共聚焦显微镜(CLSM)观察牙颈部硬化牙本质在全酸蚀和自酸蚀粘接系统形成粘接界面的超微结构。方法选用12颗因牙周病拔除的具有典型楔状缺损的上颌前磨牙为实验组;12颗新鲜拔除的无龋人上颌前磨牙为对照组,制备人造楔状...目的使用激光扫描共聚焦显微镜(CLSM)观察牙颈部硬化牙本质在全酸蚀和自酸蚀粘接系统形成粘接界面的超微结构。方法选用12颗因牙周病拔除的具有典型楔状缺损的上颌前磨牙为实验组;12颗新鲜拔除的无龋人上颌前磨牙为对照组,制备人造楔状缺损。使用Single Bond(SB,全酸蚀单瓶系统)、Clearfil SE Bond(CB,自酸蚀底胶系统)、XenoⅢ(XB,自酸蚀一步粘接系统)粘接系统处理牙面,以罗丹明B异硫氰酸盐为荧光素,使用CLSM观察粘接界面的混合层与树脂突的微观结构。结果双因素方差分析表明粘接剂种类、牙本质类型对粘接界面树脂突长度、混合层厚度有显著影响(P<0.05)。无论是正常牙本质还是硬化牙本质,全酸蚀粘接剂(SB)产生的树脂突长度、混合层厚度均大于自酸蚀粘接剂(CB、XB),并且其差异具有统计学意义(P<0.05);而CB和XB间树脂突长度、混合层厚度相差不多,二者间无统计学意义。结论硬化牙本质相对于正常牙本质形成的混合层较薄或者没有,树脂突短、少。全酸蚀粘接系统与自酸蚀粘接系统作用同类型的牙本质上,自酸蚀比全酸蚀形成的混合层薄,树脂突短。展开更多
文摘· AIM: To describe a new surgical technique for managing dislocated sclerotic cataractous lens.· METHODS: Six patients with advanced posteriorly dislocated cataracts were operated at a tertiary care centre and analyzed retrospectively. After standard 3 port23 G pars plana vitrectomy and perfluorocarbon liquid(PFCL) injection, the dislocated white cataract was held with occlusion using phaco fragmatome and then chopped into smaller pieces with a sharp tipped chopper using 25 G chandelier endoilluminator. Each piece was emulsified individually. Following aspiration of PFCL,Fluid Air Exchange was done in all the cases and surgery completed uneventfully.·RESULTS: Best corrected visual acuity(BCVA) in all the patients was better than 6/12 after one month of follow up. No serious complications were noted till minimum 6mo of follow up.·CONCLUSION: Four port posterior segment nucleotomy with a chandelier endoilluminator, fragmatome and a chopper appears to be a safe, easy and effective procedure for managing dislocated sclerotic cataractous nuclei. Ultrasonic energy used and adverse thermal effects of the fragmatome on the sclera may be lesser.
文摘BACKGROUND Marginal zone lymphoma(MZL)is an indolent non-Hodgkin B cell lymphoma with various architectural pattern including perifollicular,follicular colonization,nodular,micronodular,and diffuse patterns.A sclerotic variant has not been previously reported and represents a diagnostic pitfall.CASE SUMMARY A 66-year-old male developed left upper extremity swelling.Chest computed tomography(CT)in September 2020 showed 14 cm mass in left axilla.Needle core biopsy of axillary lymph node showed sclerotic tissue with atypical B lymphoid infiltrate but was non-diagnostic.Excisional biopsy was performed for diagnosis and showed extensive fibrosis and minor component of infiltrating B cells.Flow cytometry showed a small population of CD5-,CD10-,kappa restricted B cells.Monoclonal immunoglobulin heavy chain and light chain gene rearrangement were identified.Upon being diagnosed with MZL,patient was treated with rituximab,cyclophosphamide,doxorubicin,vincristine,and prednisone and achieved complete remission by positron emission tomography/CT.CONCLUSION This is an important case report because by morphology this case could have easily been overlooked as non-specific fibrosis with chronic inflammation representing a significant diagnostic pitfall.Moreover,this constitutes a new architectural pattern.While sclerotic lymphomas have rarely been described(often misdiagnosed as retroperitoneal fibrosis),we do not know of any cases describing this architectural presentation of MZL.
文摘目的 ：探讨超声引导下注射硬化剂聚桂醇治疗甲状腺囊肿的临床疗效及安全性。方法 ：采用超声引导经皮穿刺囊腔内注射聚桂醇,治疗甲状腺囊肿共78例。治疗前所有囊肿均接受甲状腺穿刺及细胞病理学检查,以排除恶性病变。治疗时尽量将囊液抽吸净,然后注入约1/3囊腔容积量的聚桂醇进行硬化治疗,每周1次,根据囊肿的缩小情况,共治疗1-4次。结果：178例囊肿共进行166次硬化治疗,3个月后囊肿容积平均缩小71.6%±35.3%,与治疗前相比有显著差异（P〈0.01）;治疗总有效率84.6%（66/78）,治愈率52.6%（41/78）;2不同容积大小的囊肿治愈率有统计学差异（P〈0.01）,容积〉5 m L的囊肿治愈率显著高于容积〈5 m L者（P〈0.01）,但不同容积囊肿的治疗有效率无统计学差异（P〉0.05）;3治疗前后患者甲状腺功能及甲状腺相关抗体滴度无显著变化;4治疗的并发症发生率低,无严重不良反应。结论：超声引导下注射聚桂醇治疗甲状腺囊性病变简单易行、临床效果好,不良反应少,可作为甲状腺囊肿的首选治疗方法之一。
文摘目的使用激光扫描共聚焦显微镜(CLSM)观察牙颈部硬化牙本质在全酸蚀和自酸蚀粘接系统形成粘接界面的超微结构。方法选用12颗因牙周病拔除的具有典型楔状缺损的上颌前磨牙为实验组;12颗新鲜拔除的无龋人上颌前磨牙为对照组,制备人造楔状缺损。使用Single Bond(SB,全酸蚀单瓶系统)、Clearfil SE Bond(CB,自酸蚀底胶系统)、XenoⅢ(XB,自酸蚀一步粘接系统)粘接系统处理牙面,以罗丹明B异硫氰酸盐为荧光素,使用CLSM观察粘接界面的混合层与树脂突的微观结构。结果双因素方差分析表明粘接剂种类、牙本质类型对粘接界面树脂突长度、混合层厚度有显著影响(P<0.05)。无论是正常牙本质还是硬化牙本质,全酸蚀粘接剂(SB)产生的树脂突长度、混合层厚度均大于自酸蚀粘接剂(CB、XB),并且其差异具有统计学意义(P<0.05);而CB和XB间树脂突长度、混合层厚度相差不多,二者间无统计学意义。结论硬化牙本质相对于正常牙本质形成的混合层较薄或者没有,树脂突短、少。全酸蚀粘接系统与自酸蚀粘接系统作用同类型的牙本质上,自酸蚀比全酸蚀形成的混合层薄,树脂突短。
