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目的　总结原发性胆囊鳞癌、腺鳞癌的诊治经验。方法　回顾性分析了浙江大学医学院附属第二医院 1994～ 2 0 0 3年收治的少见胆囊癌 9例 (鳞癌 1例 ,腺鳞癌 8例 )。结果　行根治性手术 4例 ,姑息性手术 5例。9例中有 8例得到随访 ,均在术后半年内死亡 ,术后中位生存期 5 1d。结论　胆囊鳞癌腺鳞癌恶性程度较高 ,但淋巴结转移相对较晚。对于合适病例应尽可能行根治性胆囊切除 ,必要时行扩大根治性切除 ,术后放疗可能是一个较好的治疗方式。     

意外胆囊癌临床分析

目的探讨意外胆囊癌的临床特点及有效治疗方法。方法回顾性分析我院1990年1月至2002年12月间所发现意外胆囊癌26例的临床资料。结果行开腹胆囊切除术发现5例，小切口胆囊切除术发现15例，腹腔镜胆囊切除术发现6例，其中NevinⅠ期11例，Ⅱ期10例，Ⅲ期3例，Ⅳ期2例。Ⅰ、Ⅱ期均随访3年以上长期存活，Ⅲ期病例均术后2年内复发死亡，Ⅳ期1年内死亡。结论重视胆囊癌的高危因素，所有病例均行冰冻切片检查，手术为胆囊癌最有效的治疗手段，早期发现、合理治疗为提高胆囊癌生存的有效措施。     

Renal cell carcinoma with unusual metastasis to the gallbladder

Gallbladder involvement in patients with renal cell carcinoma (RCC) is extremely rare. We present a report of a 61-year-old man with a synchronous RCC metastasis to the gallbladder presenting as an intraluminal polypoid mass simulating primary gallbladder carcinoma. Enhanced abdominal computed tomography demonstrated a well-enhanced polypoid lesion in the gallbladder. Intraoperative rapid pathological examination of the gallbladder tumor showed clear cell-type cancerous cells. Microscopically, tumor cells of both the resected kidney and gallbladder had round uniform nuclei, clear cytoplasm, and well-defined cytoplasmic borders, forming alveolar patterns. Immunohistochemically, the tumor cells were negative for cytokeratin 7 (CK7) and carcinoembryonic antigen (CEA), which is usually positive in primary clear cell carcinoma of the gallbladder. Therefore, the final diagnosis was RCC with a synchronous gallbladder metastasis.     

腹腔镜胆囊切除术中意外胆囊癌16例诊治分析

目的探讨腹腔镜胆囊切除术(laparoscopic cholecystectomy,LC)中遇到意外胆囊癌(unsuspected gallbladder carcinoma,UGC)的原因及防治措施. 方法回顾性分析本院6 031例LC术中遇到的16例(0.26%)UGC的临床资料. 结果术中发现胆囊癌(gallbladder carcinoma,GC)9例,另7例经术后病理证实.全组中位生存期为20.3月.原发肿瘤为T2以上的15例中,确诊后行开腹手术者10例,未开腹手术者5例,术后生存时间分别为(19.9±4.9)月及(9.8±2.8)月;行根治及扩大根治术者9例,未行根治术者6例,术后生存时间分别为(21.6±5.3)月及 (7.8±2.6)月. 结论行LC前应加强对GC的警惕与认识,术中应常规检查胆囊标本,有怀疑者及时行冰冻切片检查.UGC确诊后宜尽早开腹行根治性和扩大根治性切除术,并采取必要措施防止肿瘤种植转移.     

胆囊鳞癌和腺鳞癌12例临床分析

目的总结原发性胆囊鳞癌和腺鳞癌的诊治经验。方法回顾性分析了解放军总医院肝胆外科1994—2004年收治的胆囊癌12例（鳞癌4例，腺鳞癌8例），男女各6例。结果行根治性手术9例，姑息性手术3例。12例中有11例得到随访，其中2例在1年后死亡，1例在半年后死亡，其余均在半年内死亡。术后中位生存期108d。结论胆囊鳞癌和腺鳞癌恶性程度高，但远处转移较少，有利于手术切除。术后放疗有可能是一个有效的方法。     

Clear cell carcinoma originating from ectopic thymus

Cancer of the mediastinum is known to be a relatively rare disease, and clear cell carcinoma in the mediastinum is especially rare. Ectopic thymus is not uncommon, but clear cell carcinoma originating from ectopic thymus has never been reported. We report a case of clear cell carcinoma originating from ectopic thymus in which there was a good response to steroid-supplemented chemoradiotherapy.     

胆囊鳞癌和腺鳞癌12例临床分析

目的总结原发性胆囊鳞癌和腺鳞癌的诊治经验。方法回顾性分析了解放军总医院肝胆外科1994-2004年收治的胆囊癌12例(鳞癌4例,腺鳞癌8例),男女各6例。结果行根治性手术9例,姑息性手术3例。12例中有11例得到随访,其中2例在1年后死亡,1例在半年后死亡,其余均在半年内死亡。术后中位生存期108d。结论胆囊鳞癌和腺鳞癌恶性程度高,但远处转移较少,有利于手术切除。术后放疗有可能是一个有效的方法。     

Intraductal Glycogen-Rich Clear Cell Carcinoma of the Breast: A Rare Presentation and Review of the Literature

Background

Glycogen-rich clear cell carcinoma of the breast is a rare histological subtype of breast cancer, accounting for 0.9–2.8% of all breast cancer cases. Fewer than 100 cases have been reported in the literature. Most of these tumors are invasive carcinomas. The intraductal glycogen-rich clear cell carcinoma is a very rare occurrence.

Case Report

Herein is described a case of a pure intraductal glycogen-rich clear cell carcinoma of the breast in a 42-year-old premenopausal woman. A literature review has also been carried out. Mammography was inconclusive due to the presence of dense breast tissue, but magnetic resonance imaging (MRI) showed several nodular lesions measuring 7 × 6 cm in diameter and involving the upper aspect of the right breast suggestive of multifocal malignancy. A modified radical mastectomy was performed. The patient started hormonal therapy with tamoxifen and is currently well 16 months after surgery.

Conclusion

A pure intraductal glycogen-rich clear cell carcinoma of the breast is a very rare occurrence. The case presented here exhibited uncommon MRI features, whereas the tumor size is one of the largest reported in the literature. Mammography may be inconclusive in the presence of dense breast tissue, but MRI is of great importance in the preoperative evaluation of the patient.     

腹腔镜胆囊切除术中意外胆囊癌12例诊治分析

目的:探讨腹腔镜胆囊切除术(LC)中意外胆囊癌(unexpected gallb ladder carc inom a,UGC)的处理措施。方法:回顾分析本院955例LC术中遇到的12例(1.26%)UGC的临床资料。结果:随诊3~36个月,平均18个月。迄今全部存活。5例PT1、5例PT2、1例PT3(中转开腹)随访至今未发现癌复发及转移。1例PT2因拒绝根治术,现出现肝多发转移。1例PT4因腹腔种植转移,无法根治,故仅部分切除胆囊(胆囊粘连重),以解决急性胆囊炎问题,现有腹水、恶液质表现。所有病例均未见脐部戳孔处肿瘤种植转移。结论:LC术中应常规切开胆囊标本,必要时送术中冰冻。PT1单纯切除胆囊已足够;PT2要额外楔形切除肝组织及区域淋巴结;PT3中转开腹,行根治手术或姑息手术。     

Clear Cell Carcinoma and Clear Cell Odontogenic Carcinoma: a Comparative Clinicopathologic and Immunohistochemical Study

Clear cell carcinoma or hyalinizing clear cell carcinoma (CCC) and clear cell odontogenic carcinoma (CCOC) are rare, low-grade and typically indolent malignancies that can be diagnostically challenging. In this study the clinicopathologic, histologic, and immunohistochemical features of 17 CCCs and 12 CCOCs are examined. The differential diagnosis of clear cell malignancies in the head and neck is discussed. The relationship of CCCs and CCOCs to other clear cell tumors on the basis of their immunohistochemical staining patterns is postulated.     

Renal cell carcinoma metastases to gallbladder

A 74-year old man underwent a radical cholecystectomy for presumed gallbladder cancer. The histology of the resected specimen in fact revealed the lesion to be metastatic renal cell carcinoma from his resected right nephrectomy performed 14 years previously.     

Renal cell carcinoma metastatic to gallbladder: a survival advantage to simultaneous nephrectomy and cholecystectomy

Renal cell carcinoma is a relatively uncommon cancer. Patients presenting with a renal adenocarcinoma are often found to have evidence of metastatic disease at the time of diagnosis. Herein, we describe the case of a 39-year-old male with renal cell carcinoma and a synchronous metastatic focus to the gallbladder. The patient underwent a successful simultaneous nephrectomy and cholecystectomy and is doing well 30 months after surgery without evidence of disease recurrence. A thorough metastatic work-up along with aggressive surgical intervention in patients with renal cell carcinoma and unusual metastatic foci can provide a long-term favorable outcome.     

Clear cell carcinoma of the pancreas: an adenocarcinoma with unusual phenotype of duct cell origin

Although clear cell carcinoma has been found in various organs, only six cases have been reported in the pancreas. Moreover, the histogenesis of clear cell carcinoma of the pancreas remains controversial. We report a case of clear cell carcinoma of the pancreas in a 61-year-old woman, with an unusual pheno- or genotype detected by histochemical, immunohistochemical, and K-ras oncogene analyses. Histologically, the pancreatic tumor was predominantly composed of clear cell nests with scanty fibrous stroma and scattered duct-like structures. Neither clear cell nor duct-like components of the tumor showed mucin production. Immunohistochemical analysis of neoplastic cells showed a positive reaction to antibodies against cytokeratins 8 and 19, carbohydrate antigen 19-9, and -1-antitrypsin, and showed no reaction to antibodies against carcinoembryonic antigen, neuroendocrine markers, trypsin, amylase, and HMB45. K-ras analysis revealed no mutation at codon 12 in either clear cell or duct-like components. The patient has had no recurrence as yet. The pancreatic carcinoma in our patient may be of duct cell origin, but the results of histochemical, immunohistochemical, and gene analyses and patients outcome were unusual compared with those of previous cases.     

Open versus laparoscopic cholecystectomy for gallbladder carcinoma

Laparoscopic surgery has replaced conventional open cholecystectomy for benign gallbladder disease. A major concern is how to handle gallbladder cancer in the laparoscopic era, since there are numerous case reports of port site metastases from gallbladder cancer after laparoscopic cholecystectomy. There are also many experimental studies favoring the opinion that the laparoscopic technique implies a higher risk of spreading malignant disease. This opinion has gained wide acceptance despite little previous clinical effort to determine the risk of tumor dissemination and the lack of comparisons between open and laparoscopic surgery. This report is a short summary of our own studies and present knowledge with special respect to the clinical aspects of the development and incidence of abdominal wall metastases. Among 270 patients with verified gallbladder carcinoma in whom 210 had open surgery and 60 a laparoscopic cholecystectomy, 12 patients (6.5%) in the open cholecystectomy group and 9 (15%) in the laparoscopic group developed incisional metastases. Although the sparse clinical documentation does not unavoidably mean that laparoscopic cholecystectomy has an increased risk of disseminating tumor cells, we recommend open surgery in cases of known or suspected gallbladder carcinoma. Received: January 9, 2001 / Accepted: August 1, 2001     

Composite adeno-endocrine carcinoma of the gallbladder with long-term survival

INTRODUCTIONPrimary endocrine cell tumors in the gallbladder are uncommon, and the coexistence of an endocrine cell tumor and adenocarcinoma, squamous cell carcinoma, and sarcomatoid components is extremely rare.PRESENTATION OF CASEA rare case of adeno-endocrine cell carcinoma of the gallbladder in an 81-year-old woman is reported. Abdominal ultrasonography (US) revealed a hypo-echoic, solid tumor, 2.0 cm × 1.8 cm in size, at the fundus of the gallbladder. On computed tomography (CT), the tumor was well-enhanced, well-demarcated, and homogeneous. The tumor, which was papillary, protruded into the gallbladder with no direct invasion to the liver. The tumor was diagnosed as gallbladder carcinoma; its depth appeared not to pass the subserosa layer. A cholecystectomy and hepatic bed resection with regional lymph node dissection were performed. Histologically, the tumor consisted of several components, including well to poorly differentiated papillary and tubular adenocarcinoma with squamous and sarcomatoid differentiations, and endocrine cell carcinoma. Histochemical studies of these tumor cells were positive for chromogranin A, synaptophysin, and cluster of differentiation 56 (CD56). The lymph node consisted of metastatic adeno-endocrine carcinoma. The patient survived and has remained disease-free for 4 years without adjuvant chemotherapy.DISCUSSIONAdeno-endocrine cell carcinoma of the gallbladder generally has a poor prognosis.CONCLUSIONThe present case suggests that adeno-endocrine cell carcinoma with various components may be derived from a common precursor cell. This observation would require further investigation.     

Clear cell hidradenoma of the index finger

A patient with a benign clear-cell hidradenoma of the index finger is presented. Clear cell hidradenoma is a rare tumor originating from the eccrine sweat glands and infrequently appears on the hand.     

意外胆囊癌的临床处理对策与预后

目的探讨意外胆囊癌的临床处理对策与预后。方法回顾性分析意外胆囊癌51例,对其治疗与预后进行统计分析。生存分析采用Kaplan-Meier法,组间比较采用Log-rank检验,多因素分析采用Cox比例风险模型。结果多因素分析表明肿瘤位置、Nevin分期及手术方式是影响预后的独立因素;对于Ⅱ期体底部胆囊癌和Ⅲ、Ⅳ期体底部胆囊癌以及颈部胆囊癌,胆囊癌根治术组优于单纯胆囊切除术组,其差异有统计学意义(P值分别为0.014、0.001及0.018);对于Ⅰ期体底部胆囊癌,单纯胆囊切除术组与胆囊癌根治术组病人的生存率差异无统计学意义(P=0.312)。结论对于NevinⅠ期体底部胆囊癌病人,单纯胆囊切除术已达到根治效果;对于NevinⅠ期颈部胆囊癌及NevinⅡ期以晚的胆囊癌,胆囊癌根治术能有效改善其预后。     

意外胆囊癌的临床处理与预后分析

目的 总结意外胆囊癌的临床病理特点、诊断与治疗方案的选择,分析与预后有关的因素,指导意外胆囊癌的规范化治疗.方法 回顾性分析北京协和医院1999年1月至2009年10月收住院治疗的27例意外胆囊癌的临床资料,应用Kaplan-Meier法对比单纯胆囊切除术组、胆囊癌根治术组以及NevinⅠ、Ⅱ期与Ⅲ、Ⅳ、Ⅴ期患者的累积生存率,对意外胆囊癌的治疗方法与预后进行分析.结果 27例患者以胆囊良性疾病的术前诊断行胆囊切除术,术前诊断以急慢性胆囊炎、胆囊结石和胆囊息肉为主.术后病理学检查证实为胆囊癌,其中低分化腺癌9例,中分化腺癌9例,高分化腺癌4例,腺瘤癌变5例.按Nevin分期,Ⅰ期2例,Ⅱ期5例,Ⅲ期8例,Ⅳ期5例,Ⅴ期7例.胆囊癌根治术组患者累积生存率好于单纯胆囊切除术组(x2=4.450,P=0.035);Nevin Ⅰ、Ⅱ期患者预后显著优于Ⅲ、Ⅳ、Ⅴ期(x2=6.825,P=0.014).结论 意外胆囊癌临床表现缺乏特异性,容易导致误诊,术中快速病理切片检查是明确诊断的重要方法,确诊后首选根治性切除术.     

胆囊腺鳞癌和鳞癌与胆囊腺癌的临床对比研究

目的 探讨胆囊腺鳞癌和鳞癌的临床特点.方法 回顾性分析112例胆囊癌患者的临床资料,将其中11例胆囊腺鳞癌和鳞癌的临床特点和预后与同期收治的101例胆囊腺癌进行比较.结果 腺鳞癌/鳞癌组与腺癌组的肿瘤浸润分期为13或T4的比例分别为100%和53%,两组的差异有统计学意义(X2=7.013,P=0.008).腺鳞癌/鳞癌与进展期腺癌(T3或T4期)的远处转移发生率分别为0和35%,差异有统计学意义(X2=3.900,P=0.048),两组的淋巴结转移率为82%和87%(X2=0.000,P=1.000).腺鳞癌/鳞癌组和进展期的腺癌组的胃肠道侵犯发生率分别为45%和15%,差异无统计学意义(X2=3.618,P=0.054).两组的中位生存期分别为5个月和4个月,生存差异无统计学意义(X2=0.359,P=0.549).结论 胆囊腺鳞癌和鳞癌的局部侵袭性强,而远处转移率低.淋巴结转移情况与腺癌相似.