^32磷简易敷贴药膜治疗小儿皮肤血管瘤2450例疗效分析

目的　评价3 2 磷简易敷贴药膜治疗小儿皮肤血管瘤的效果 .方法　 2 4 5 0例不同年龄的血管瘤小儿接受3 2 磷简易敷贴药膜治疗 ,治疗次数为 1～ 9次 ,平均 3.5次 ;每次间隔 2个月 ,按不同年龄给不同的照射量 ,以治疗时间换算 ,每次治疗剂量为 0 .92 5MBq/cm2 × ( 12～ 4 2 )h .结果　血管瘤和血管痣治愈率 71.7% ,部分治愈 2 2 .5 % ,总有效率 94 .2 % ,无效者 5 .8% .其中血管瘤效果明显优于血管痣 (p<0 .0 1) ,并且年龄越小效果越明显 (p<0 .0 1) .结论　3 2 磷简易敷贴药膜治疗小儿皮肤血管瘤是一种治疗简便、疗效确切的方法 ,尽早治疗效果更明显     

Carcinogenicity of 1,2-dimethylhydrazine dihydrochloride in BALB/c mice

Summary The carcinogenicity of 1,2-dimethylhydrazine dihydrochloride (DMH) by oral, intragastric and subcutaneous administration was examined in 339 BALB/c mice. Subcutaneous injection of DMH induced intestinal tumors in the lower colon of all mice. After oral administration it induced a high incidence of vascular tumors in the liver and soft tissues, but colon tumors were found in only 2 mice when given at a high dosage. On intragastric administration, it induced a fairly high incidence both of colon and vascular tumors. The sites and incidences of vascular tumors and squamous cell carcinomas of the perianal glands were also described.This work was supported in part by a Grant-in Aid for Cancer Research from the Ministry of Education, Japan.     

Human monocyte-derived hemangioma-like endothelial cells: evidence from an in vitro study

BACKGROUNDS: Hemangiomas are highly prevalent in newborns and infants and can lead to severe complications. However, the pathogenesis of hemangiomas is still unknown. This study was designed to examine the potential of human monocytes to differentiate into hemangioma endothelial cells. METHODS: Purified monocytes from adult human peripheral blood were cultured under a conditional culture environment supplemented with basic fibroblast growth factor and vascular endothelial growth factor. Cells cultured for 2 weeks were subjected to histological and immunochemical examinations in order to determine the expression of specific markers for hemangioma endothelial cells. RESULTS: Monocytes cultured for 2 weeks in angiogenic medium expressed human erythrocyte-type glucose transporter protein, FcgammaRII, and several other endothelial markers, all of which are deemed specific markers for hemangioma endothelial cells. However, neither CD133 nor alpha smooth muscle actin was detected in our monocyte culture. CONCLUSION: Our data suggested that monocytes are capable of differentiating into hemangioma endothelial cells under the angiogenic stimulation from microenvironment of proliferative hemangioma.     

Urethral hemangioma: Laser treatment

Urethral hemangioma is a rare cause of hematuria for which variousmodalities of treatment have been used. We report a young patient, whopresented with hematuria and in whom urethrocystoscopy showed multiplehemangiomas in penile urethra. These were fulgurated successfully withNd-YAG laser. This revised version was published online in August 2006 with corrections to the Cover Date.     

婴幼儿口腔颌面部血管瘤的早期手术治疗

本文通过对１０６例０～８岁婴幼儿血管瘤患者手术治疗的总结回顾，发现出生１月内患者手术有效中１００％，３～８岁内患者手术有效中８０．９％。认为手术是治疗血管瘤的主要方法，安全、可靠、并发症少，并提示血管瘤发现越早，早作手术，治疗效果越好。     

Imaging of compressive vertebral haemangiomas

Compressive vertebral haemangiomas (VHs) are rare. Correct preoperative diagnosis is useful both for operative planning (since compressive VHs are extremely vascular lesions) and to allow preoperative embolisation. Numerous radiological signs for VHs have been described, but compressive VHs frequently have atypical features. In particular, magnetic resonance features are not well established. We present imaging features in three cases of compressive VH and review the imaging findings in an additional 106 previously published cases. Findings were typical in 52 of 80 plain film (65 %), 33 of 41 computed tomography (80 %) and 13 of 25 magnetic resonance examinations (52 %). The prevalence of previously described imaging features is reported. Awareness of the range of magnetic resonance features is important since this is frequently the initial investigation in patients presenting with symptoms of neural compression. Since computed tomography is typical in 80 % of cases, this is a useful confirmatory test if magnetic resonance features are suspicious but not diagnostic of compressive VH. Received: 6 August 1999; Revised: 4 November 1999; Accepted: 4 November 1999     

Solitary skeletal hemangioma of the extremities

Objective. To report the clinicopathologic features of solitary skeletal hemangioma of the extremities and to review previous cases in the English language medical literature. Patients. In addition to five of our own cases, 34 literature cases with substantial and 75 with partial clinicopathologic information were found. Results. Our patients, three men and two women, ranged in age from 37 to 83 years (mean 65.6 years). The lesion was an incidental radiologic finding in two patients, while three were symptomatic. In no case was a correct preoperative radiologic diagnosis made, a malignant process being considered as a possibility in all. The hemangiomas were medullary; two involved a metacarpal, two the fibula, and one the humerus. In contrast, previously reported patients were younger (mean age 32 years), predominantly female (60%), and symptomatic in over 90% of cases. The lesion is rare in those younger than age 10 years or older than age 60 years. As in our patients, the long bones are most frequently involved (75%), with the diaphysis or metadiaphysis, as in four of our patients, the most common locations. Although 20% of cases occur in the hands or feet, metacarpal involvement is rare. Medullary origin, as in all of our cases, is most frequent, but 45% of cases are either periosteal (33%) or intracortical (12%). In the literature, cavernous hemangioma is the most frequent type. Three of our hemangiomas were cavernous, one capillary, and one venous, the latter being rarely reported in extremity bones. Conclusions. Due to the diversity of radiologic patterns produced by skeletal hemangioma, a correct preoperative diagnosis is rarely made. Almost all patients do well, even those with less than complete removal of the lesion; local recurrence is rare. All of our patients were well following either therapeutic or simple diagnostic procedures. Due to the destructive nature of some biopsy procedures, the histologic diagnosis of hemangioma may at times also be problematic. Received: 7 February 2000 Revision requested: 31 March 2000 Revision received: 25 May 2000 Accepted: 26 May 2000     

雌激素和血管内皮细胞生长因子促进血管瘤增殖的体外实验研究

目的：研究雌二醇(E2)和血管内皮细胞生长因子(VEGF)在促进血管瘤血管内皮细胞(HVEC)增殖中的作用和相互关系，以及4羟基他莫昔芬(4OH—TAM)对该促进作用的影响。方法：取2例雌激素受体阳性的皮肤增生期草莓状血管瘤标本，采用组织块培养法培养HVEC。HVEC原代及传代培养在M199培养液中进行，传至第三代时改用无雌激素培养液IMEM进行干预实验，实验分5组：组1(无干预，为对照组)、组2(加E2)、组3(加VEGF)、组4(加E2和VEGF)、组5(加E，、VEGF和4OH—TAM)。分别在0、3、6、9d进行细胞计数(CC)和流式细胞仪DNA增殖指数(PI)检测。结果例1在第9d时，组2示HVEC轻微增殖，CC和PI分别为组1的1．38倍和1．61倍；组3示CC及PI明显增加，分别为组2的2．10倍和1．61倍；组4示OC及PI的增加更加显著，分别是组3的1．62倍和1．40倍；组5的OC和PI与组1相仿。例2的实验结果与例1相似。结论：体外实验显示雌激素能够轻微促进HVEC增殖；VEGF可明显促进HVEC增殖；而雌激素和VEGF同时存在时，对HVEC的促增殖作用更加显著，二者存在协同作用；他莫昔芬能抑制这种协同促增殖作用。     

儿童毛细血管瘤裸鼠移植模型的制作研究

目的　建立人毛细血管瘤裸鼠移植瘤模型。同时观察肿瘤生长情况 ,探讨血管瘤裸鼠模型建立的条件。方法　将手术切除的 1例雌激素受体阳性的儿童增生期草莓状血管瘤组织制成组织块 ,植入 16只幼裸小鼠 (BALB/cnudemice)皮下 ,每只 4处。将 16只裸小鼠分为 2个实验组。实验 1组在移植后给予普通鼠食喂养 ;实验 2组在 1组基础上每周肌注雌二醇 0 .1mg。喂养 90d ,观察2个实验组中移植瘤的生长情况。 90d后对成活的移植瘤标本进行病理学光镜检查 ,血管内皮细胞单克隆抗体CD3 4 、细胞增殖标记抗体Ki 6 7免疫组化染色。证实成活的移植瘤来源于原人体血管瘤 ,并了解其生物学特点。结果　 90d后 ,单纯喂养的实验 1组所有移植瘤均未成活 ,被吸收或形成脓肿。而实验 2组移植瘤均成活。光镜下成活的移植瘤与原血管瘤组织生物学特点相似。CD3 4 阳性指数达 4 8.4 8± 3.90。Ki 6 7阳性指数 15 .0 4± 2 .4 4 ,与正常人体皮肤的Ki 6 7阳性指数 1.14± 0 .4 0相比 ,差异具有显著性意义 (P <0 .0 1)。结论　通过移植人体血管瘤在裸鼠体内可建立人类血管瘤的动物模型。该模型保留了人类血管瘤的主要生物学特点 ,是血管瘤基础和临床研究的良好模型。     

Hemangioma of bone arising in the ulna: imaging findings with emphasis on MR

An 18-year-old woman presented with left elbow joint pain. Radiographs and computed tomographic scan showed a well-defined osteolytic lesion of the left ulna associated with a honeycomb appearance on the radiographs. Magnetic resonance images showed intermediate signal intensity on T1-weighted images and mixed intermediate and high signal intensities on T2-weighted images. Only the periphery of the lesion enhanced with intravenously injected gadolinium-diethylenetriamine pentaacetic acid. The lesion was curetted to avoid pathologic fracture, and a histologic diagnosis of cavernous hemangioma of bone was made. Hemangioma involving the ulna is rare, but should be included in the differential diagnosis of a radiographic osteolytic lesion with a honeycomb appearance. Received: 17 September 1999 Revision requested: 31 October 1999 Revision received: 10 December 1999 Accepted: 13 December 1999