囊瘤的

METHODS摘要: Fourteen patients proved pathologically as brain abscess and 17 cystic/necrotic metastatic tumor underwent conventional MRI and DWI examinations. DWI signal and ADC value were evaluated in cerebritis stage, capsule formation stage, and evolution stage of brain abscess and compared with those of cystic/necrotic metastatic tumor. Chisquared test and t test were performed for statistic analysis.

方法摘要：病理及临床证实脑脓肿14例，坏死囊变脑转移瘤17例，经常规磁共振检查及弥散加权检查，在脑脓肿脑炎期、包膜期及吸收期进行弥散信号及ADC值的测量，并和坏死囊变脑转移瘤相比较，统计学分析采用χ2检验和t检验。

METHODS: Fourteen patients proved pathologically as brain abscess and 17 cystic/necrotic metastatic tumor underwent conventional MRI and DWI examinations. DWI signal and ADC value were evaluated in cerebritis stage, capsule formation stage, and evolution stage of brain abscess and compared with those of cystic/necrotic metastatic tumor. Chisquared test and t test were performed for statistic analysis.

病理及临床证实脑脓肿14例，坏死囊变脑转移瘤17例，经常规磁共振检查及弥散加权检查，在脑脓肿脑炎期、包膜期及吸收期进行弥散信号及ADC值的测量，并与坏死囊变脑转移瘤相比较，统计学分析采用χ2检验和t检验。

METHODS: Fourteen patients proved pathologically as brain abscess and 17 cystic/necrotic metastatic tumor underwent conventional MRI and DWI examinations. DWI signal and ADC value were evaluated in cerebritis stage, capsule formation stage, and evolution stage of brain abscess and compared with those of cystic/necrotic metastatic tumor.

病理及临床证实脑脓肿14例，坏死囊变脑转移瘤17例，经常规磁共振检查及弥散加权检查，在脑脓肿脑炎期、包膜期及吸收期进行弥散信号及ADC值的测量，并与坏死囊变脑转移瘤相比较，统计学分析采用χ2检验和t检验。

Results With the expression in normal salivary gland as a standard, low C-erbB-2 mRNA expression was seen in adenolymphoma, basal cell adenoma. However, various degrees of over-expression of C-erbB-2 oncogene mRNA were detected in pleomorphic adenoma, mucoepidermoid carcinoma,acinic cell carcinoma ,adenoid cystic carcinoma ,papillary cystic carcinoma,and myoethelial cell carcinoma.

结果 正常涎腺和涎腺肿瘤中发现不同程度C-erbB-2mRNA的表达，以正常涎腺组织的表达水平为基准，在腺淋巴瘤、基底细胞腺瘤呈现低表达、无表达或与正常涎腺组织表达水平相似，多形性腺瘤、粘液表皮样癌、腺泡细胞癌、腺样囊性癌、乳头状囊腺癌和肌上皮癌则呈现不同程度的过表达。

The fundamental imaging features of osteosarcoma were showed bone destruction, periosteal reaction, neoplastic bone and soft-tissue mass. Among 49 cases examined by radiography, osteoblastic pattern sarcoma was found in 19 cases, osteolytic pattern sarcoma was found in 13 cases and mixed pattern sarcoma was found in 17 cases. The detection rates of bone destruction, periosteal reaction, soft-tissue mass, neoplastic bone and Codman triangle by radiography were respectively 61.2%, 95.9%, 71.4%, 73.5%and 27.7%. All 10 cases with CT scan were showed bone destruction, soft - tissue mass and neoplastic bone. The detection rates of periosteal reaction,憇ieve sign挶 and Codman triangle with CT scan were respectively 90%, 90% and 11%. The tiny neoplastic bone and"sieve sign"were showed sensitively by CT, but Codman triangle was showed by radiography superior to CT.32 cases with MRI scan presented the normal marrow was replaced by the tumor, which was showed low to intermediate signal intensity on T1-weighted images and promiscuity signal intensity on T2-weighted images. 7 cases presented hemorrhage and 24 cases presented necrosis.

骨肉瘤基本影像表现为骨质破坏、骨膜反应、瘤骨和软组织肿块。49例X线表现为成骨型19例，溶骨型13例，混合型17例；X线对骨质破坏、骨膜反应、软组织肿块、瘤骨和Codman三角的检出率分别为61.2%、95.9%、71.4%、73.5%和27.7%；10例CT表现均可见骨质破坏、软组织肿块及瘤骨，CT对骨膜反应、筛孔征和Codman三角的检出率为90%、90%和11%；CT对显示细小肿瘤骨和筛孔征最敏感，但对Codman三角的显示不如X线平片；32例MRI表现为骨髓腔内正常的骨髓高信号被肿瘤信号所取代，T1WI呈低～等信号，T2WI呈混杂信号，7例合并出血，24例中央坏死囊变，32例增强扫描均呈不均匀强化及瘤周可见水肿区。

Results About 39 cases were diagnosed as benign tumors,majority of which were demoid cysts.The another one case was borderline mucinous cystadenoma.Eight cases were diagnosed by ultrasound examination during the first trimester(53.33 %),4 had complication to do emergency operations,3 were caused by torsion,one by rupure.Serum samples for CA125 estimation were obtained from 3 before operations.AS a result,2 cases were elevated,one of which was borderline mucinoers cystadenoma.38 cases were full-term birth.

结果 妊娠期良性肿瘤39例，占97.5%，以生殖细胞肿瘤多见，黏液性囊腺瘤交界型1例；孕早期超声诊断8例，占孕期发现总例数的53.33%(8/15)；有4例出现并发症并行急诊手术，扭转3例，破裂1例，术前3例行CA125检查，2例升高，其中1例为黏液性囊腺瘤交界型；足月分娩38例，占95.00%。

Results 7of22cases were angiomyolipoma,6were xanthogranulomatous pyelonephritis,4were multilocular cystic nephroˉma,2were leiomyoma of kidney,2were renal abscess,one case were renal fibrolipoma.

结果 误诊为肾癌的良性占位病变22例，其中肾血管平滑肌脂肪瘤合并出血7例，局灶型黄色肉芽肿性肾盂肾炎6例，肾多发性囊性肾瘤4例，肾平滑肌瘤2例，肾脓肿2例，肾纤维脂肪瘤1例。

Results 7of22cases were angiomyolipoma,6were xanthogranulomatous pyelonephritis,4were multilocular cystic nephroˉma,2were leiomyoma of kidney,2were renal abscess,one case were renal fibrolipoma.

结果 误诊为肾癌的良性占位病变22例，其中肾血管平滑肌脂肪瘤合并出血7例，局灶型黄色肉芽肿性肾盂肾炎6例，肾发性囊性肾瘤4例，肾平滑肌瘤2例，肾脓肿2例，肾纤维脂肪瘤1例。

All 31 YSTs (5 pediatric and 26 postpubertal) showed strong positive SALL4 staining in more than 90% tumor cells but had negative OCT4 staining. Both spermatocytic seminomas showed positive SALL4 staining in 80% to 95% tumor cells in all 3 types of tumor cells with weak-to-moderate staining intensity.

为了检验SALL4的特异性，我们还给23例睾丸的非GCTs（10例间质细胞瘤、4例支持细胞瘤、3例腺瘤样瘤、3例睾丸旁横纹肌肉瘤、2例弥漫性大B细胞瘤、1例睾丸网的乳头状囊腺瘤）和275例非睾丸性肿瘤（158例转移癌、12例转移性黑色素瘤、11例原发性和2例转移性间皮瘤、72例原发性和20例转移性肉瘤）做了SALL4免疫染色。

Results: 22 cases of inflammatory pseudotumor, and all the dissociated edges being sharp, including 9 cases involving tear gland, 7 cases surrounding the eyeball, 2 cases showing the optic nerve and extraocular muscles thicken, and 4 cases showing several extraocular muscles diffuse thicken. 4 cases were granulomatous inflammation filling up the orbit with soft tissue. One case was the chronic inflammation of the lacrimal sac showing a cystoid lump in the area of the lacrimal sac. One case was the chronic inflammation around the lacrimal sac showing a small lump with a low denstiy in its center in the area of the lacrimal sac. One case was orbital cellulitis showing the density of the right part in the orbit outside the eyeball becoming higher, and having not a edge.

结果：炎性假瘤22例，肿块游离缘锐利，其中9例累及泪腺，7例绕眼球生长，2例表现为眶尖部视神经及眼外肌增粗，4例主要表现为眼肌弥漫性增粗；肉芽肿性炎症4例，在眶内呈铸形生长；慢性泪囊炎1例表现为内眦部泪囊区囊性肿块；慢性泪囊周围炎1例表现为内眦部泪囊区中央可见液性密度的小肿物；蜂窝织炎1例表现为右侧眶内眼球外侧密度增高，边缘模糊不清。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。