Inferior vena cava obstruction and collateral circulation as unusual manifestations of hepatobiliary cystadenocarcinoma

BACKGROUND: Hepatobiliary cystadenocarcinoma represents a rare epithelial malignant tumor derived from the intrahepatic bile duct. METHODS: A 71-year-old woman, who had undergone laparoscopic drainage of a cystic lesion of the right hepatic lobe, was misdiagnosed as having hepatic echinococcal disease, and received intracystic infusion of 95% ethanol four years ago. She was admitted to our hospital for further treatment. RESULTS: Physical examination revealed dilated superficial veins across the right abdominal wall. After mapping the direction of blood flow in these vessels, we assumed that this was a sign of inferior vena cava obstruction. Abdominal ultrasound, computed tomography, magnetic resonance imaging combined with magnetic resonance angiography showed a large cystic mass in the right upper quadrant and epigastrium, displacing the adjacent structures, adherent to the inferior vena cava, which was not patent, resulting in dilation of superficial epigastric veins. The patient underwent an exploratory laparotomy. Total excision of the huge mass measuring 16×15 cm was possible under selective vascular exclusion of the liver. Removal of the tumor resulted in immediate restoration of flow in the inferior vena cava. On the basis of the pathology and findings of immunohistochemical analysis, a hepatobiliary cystadenocarcinoma was diagnosed.CONCLUSIONS: In the present case, hepatobiliary cystadenocar-cinoma was accompanied by dilated superficial venous collaterals due to inferior vena cava obstruction. Selective vascular exclusion of the liver allowed a safe oncological resection of the tumor.

Intrahepatic biliary cystadenocarcinoma: clinical analysis of 4 cases

BACKGROUND:Intrahepatic biliary cystadenocarcinoma (IBC)is a low-incidence disease which is often mis- diagnosed because of insufficient recognition.This study aimed to investigate the clinical features,diagnosis and treatment of the disease. METHOD:The clinical data of 4 IBC patients treated in the Second Affiliated Hospital of Sun Yat-Sen University were retrospectively analyzed. RESULTS:The 4 patients complained of right upper abdominal pain and mass or masses.One patient presented with moderate fever and chills,and two had moderately impaired liver function.The levels of carbohydrate antigens(CA125 and CA19-9)were significantly elevated and the level of carcinoembryonic antigen was slightly elevated in 3 patients.The level of serum transaminase was elevated in 2 patients,and the level of serum total bilirubin elevated in 2.Intrahepatic cystic masses ranging from 5.0 to 20.5 cm in diameter were found in all patients by ultrasound and CT/MR scan.Three of the 4 patients were misdiagnosed on admission as having hepatic cyst and one as having hepatic abscess.Radical removal of masses was performed in three patients after pathological diagnosis.One patient died from tumor recurrence 7 years after operation,2 were followed up for 12 and 17 months without evidence of recurrence.The high risk patients who received palliative therapy were closely followed up. CONCLUSIONS:The diagnosis of IBC without specific clinical features mainly depends on imaging and pathological examination.Increased levels of serum CA125 and CA19-9 might contribute to the diagnosis and prognosis of some IBC patients.Radical excision is the only effective treatment.

Improved early diagnosis of cystadenocarcinoma of the pancreas

BACKGROUND: Cystadenocarcinoma of the pancreas is insensitive to radiotherapy and chemotherapy, and surgery is at present the definitive treatment. Early and accurate diagnosis of cystadenocarcinoma is crucial for increasing the five-year survival rate and the resectable rate. There is no definitive and effective method of early diagnosis of cystadenocarcinoma of the pancreas in China and other countries. METHODS: We compared endoscopic ultrasonography- guided (EUS-guided) fine needle aspiration biopsy combined with cyst fluid carcinoembryonic antigen (CEA), CA19-9 examination with computed tomography (CT), B-ultrasonography (B-US) and serum CEA and CA19-9, to explore methods of early diagnosis of cystadenocarcinoma of the pancreas. Retrospective analysis was made on the clinical data of 126 cases of benign pancreatic lesion (90 cases) and cystadenocarcinoma (36). RESULTS: The sensitivity of B-US and CT for cystadeno- carcinoma was 52.8% and 77.8%, while the specificity was 78.9% and 86.7%, respectively. When measurement of CEA and CA19-9 of cyst fluid was combined with EUS-guided fine needle aspiration biopsy, the sensitivity was 94.4%, higher than that of B-US and CT (P<0.05). The sensitivity of cyst fluid CEA, CA19-9 examinations was considerably higher than that of serum CEA, CA19-9 (P<0.05). Upper gastrointestinal barium meal and endoscopic retrograde cholangiopancreatography (ERCP) had low sensitivity and specificity. CONCLUSIONS: EUS-guided fine needle aspiration biopsy combined with examination of cyst fluid CEA, CA19-9 is a credible means for early diagnosis of cystadenocarcinoma of the pancreas. B-US, CT and serumCEA, CA19-9 measurements are in common use, their findings are also very important.

Clinical diagnosis and management of pancreatic mucinous cystadenoma and cystadenocarcinoma:Single-center experience with 82 patients

BACKGROUND Mucinous cystic neoplasm(MCN)of the pancreas is characterized by mucinproducing columnar epithelium and dense ovarian-type stroma and at risk for malignant transformation.Early diagnosis and treatment of MCN are particularly important.AIM To investigate the clinical characteristics of and management strategies for pancreatic mucinous cystadenoma(MCA)and mucinous cystadenocarcinoma(MCC).METHODS The clinical and pathological data of 82 patients with pancreatic MCA and MCC who underwent surgical resection at our department between April 2015 and March 2019 were retrospectively analyzed.RESULTS Of the 82 patients included in this study,70 had MCA and 12 had MCC.Tumor size of MCC was larger than that of MCA(P=0.049).Age and serum levels of tumor markers carcinoembryonic antigen(CEA),carbohydrate antigen(CA)19-9,and CA12-5 were significantly higher in MCC than in MCA patients(P=0.005,0.026,and 0.037,respectively).MCA tumor size was positively correlated with serum CA19-9 levels(r=0.389,P=0.001).Compared with MCC,MCA had a higher minimally invasive surgery rate(P=0.014).In the MCA group,the rate of major complications was 5.7%and that of clinically relevant pancreatic fistula was 8.6%;the corresponding rates in the MCC group were 16.7%and 16.7%,respectively.CONCLUSION Tumor size,age,and serum CEA,CA19-9,and CA12-5 levels may contribute to management of patients with MCN.Surgical resection is the primary treatment modality for MCC and MCA.

Biliary cystadenocarcinoma diagnosed with real-time contrast-enhanced ultrasonography:Report of a case with diagnostic features

Biliary cystadenocarcinoma is a very rare malignant cystic tumor of the liver,which is often misdiagnosed due to a poor recognition of it.We report a case of a 60-year-old man with biliary cystadenocarcinoma with his real time contrast enhanced ultrasound(CEUS)characteristics compared to those of computed tomography(CT)and magnetic resonance imaging(MRI),which were correlated with the surgical and pathologic findings.Cystic wall enhancement,internal septations and intra-cystic solid portions in the arterial phase were observed on CEUS after contrast agent injection.The enhancement was washed out progressively and depicted as hypo-enhancement in the portal and late phases.CT revealed a large irregular cystic lesion in the left liver lobe with no clear septations and solid components.MRI showed an irregular cystic occupying lesion with septations.

Concomitant adenosquamous carcinoma and cystadenocarcinoma of the extrahepatic bile duct: A case report

BACKGROUND Infiltrative adenosquamous carcinoma(ASC) of the extrahepatic bile duct is reported infrequently, which is an unusual variant of the ordinary adenocarcinoma. The simultaneous development of ASC and cystadenocarcinoma in the extrahepatic biliary tree is rare. In addition, the accurate preoperative diagnosis of concomitant carcinoma in the multiple biliary trees at an early stage is often difficult. Thus, awareness of the risk of the multiplicity of biliary tumors is perhaps the most important factor in identifying these cases.CASE SUMMARY Here, we report a case of a 63-year-old female with jaundice, who was referred to Shuguang Hospital because of abdominal pain for 1 mo. An abdominal contrastenhanced computed tomography revealed a type I choledochal cyst and intraluminal masses suggestive of adenoma of the common bile duct. In addition,a preoperative diagnosis of a concomitant Klatskin tumor and type I choledochal cyst was made. The patient underwent anti-inflammatory therapy, followed by radical surgery due to hilar cholangiocarcinoma and resection of the choledochal cyst. Examination of the surgical specimen revealed a papillary tumor of the common bile duct, which arose from the malignant transformation of a preexisting cystadenoma. Histologic examination confirmed a special type of cholangiocarcinoma; the tumor in the hilar bile duct was an ASC, whereas the tumor in the common bile duct was a moderately differentiated cystadenocarcinoma. The patient showed rapid deterioration 8 mo after surgery.CONCLUSION Although concomitant ASC and cystadenocarcinoma of the extrahepatic bile duct is difficult to diagnose before surgery, and the prognosis is poor after surgery,surgical resection is still the preferred treatment.

Cystadenocarcinoma of the liver:a case report

Biliary cystadenocarcinoma as a very rare hepatic neoplasm may be difficult to distinguish from simple hepatic cysts, especially in the unilocular form. Although diagnosis of cystadenocarcinoma during open hepatic surgery demands a complete surgical resection, few reports described the correct approach to such lesions revealed by laparoscopic approach. Five cases of incidental cystadenocarcinoma after laparoscopic surgery for hepatic cystic lesions were presented with discussion of diagnostic and management implications. METHODS:Clinical records of 5 patients who had undergone operation and histological examination at our hospital from 1993 to 2002 were analyzed retrospectively. RESULTS:In all patients who received liver lobectomy, primary hepatic cystadenocarcinoma was diagnosed. Primary biliary cystic neoplasm was difficult to diagnose and the management of both benign and malignant tumors was similar in the 5 patients. CONCLUSIONS:Cystadenocarcinoma is often difficult to diagnose because its clinical manifestations are similar to those of hepatic cysts and other cystic lesions. Imagining examination is helpful in evaluating the disease. Complete excision of cystadenocarcinoma with a wide margin is the best treatment.

Pancreatic mucinous cystadenocarcinoma in a patient harbouring BRCA1 germline mutation effectively treated with olaparib: A case report

BACKGROUND Pancreatic mucinous cystadenocarcinoma(MCAC)is a rare malignancy with a poor prognosis when it presents metastases at diagnosis.Due to its very low incidence,there are no clear recommendations for the treatment of advanced disease.Olaparib(an oral PARP inhibitor)has been approved for the maintenance treatment of patients with metastatic pancreatic adenocarcinoma harbouring germline BRCA1/2 mutations.Herein,we report the first case of a germline BRCA1 mutated unresectable MCAC which was effectively treated with olaparib.CASE SUMMARY A 41-year-old woman,without personal or family history of cancer,was diagnosed with ovarian and peritoneal metastases of MCAC.She underwent 12 cycles of gemcitabine plus oxaliplatin(GEMOX)obtaining a partial response and allowing radical surgery.One year later,local recurrence was documented,and other 12 cycles of GEMOX were administered obtaining a complete response.Seven years later,another local recurrence,not amenable to surgical resection,was diagnosed.She started FOLFIRINOX(oxaliplatin,irinotecan,leucovorin and fluorouracil),obtaining a partial response after 8 cycles.Given the excellent response to platinum-based chemotherapy,BRCA testing was performed,and a BRCA1 germline mutation was detected.She was switched to maintenance olaparib due to chemotherapy-related toxicities and achieved an almost complete metabolic response,with a reduction in the diameter of the lesion,after three months of therapy.CONCLUSION The current case suggests the beneficial effect of olaparib in BRCA mutated MCAC.However,further studies are required.

Hepatic abscess caused by esophageal foreign body misdiagnosed as cystadenocarcinoma by magnetic resonance imaging:A case report

BACKGROUND Foreign bodies stuck in the throat and esophagus can be discharged through the digestive tract.Esophageal-lodged foreign bodies can cause secondary injury or detrimental response,with hepatic abscess being one such,albeit rare,outcome.Review and discussion of the few case reports on such instances will help to improve the overall understanding of such conditions and aid in differential diagnosis to improve patient outcome.CASE SUMMARY A 51-year-old female patient with pre-existing diabetes visited our hospital following a 15-d experience of chills and fever.Both plain and enhanced magnetic resonance imaging and color Doppler ultrasound examination of the liver and gallbladder revealed a space-occupying lesion in the caudate lobe of the liver(7.8 cm×6.0 cm×5.0 cm).Initially,a malignant tumor was suspected,but differential diagnosis was unable to exclude the possibility of hepatic abscess.Conservative anti-infection therapy produced a less than ideal outcome.Additional examination by hepatobiliary imaging with computed tomography suggested a foreign body present in the upper abdomen and hepatic abscess,and subsequent endoscopy revealed a sinus tract in the anterior wall of the duodenal bulb.Therefore,surgery was performed to remove the object(fishbone)and drain the abscess.After a 2-wk uneventful recovery,the patient was discharged.The final diagnosis was foreign body-induced hepatic abscess of the caudate lobe.CONCLUSION Differential diagnosis is important for hepatic masses,and systematic examination and physician awareness can aid in diagnosing and curing such rare conditions.

Primary Serous Cystadenocarcinoma of Broad Ligament: A Case Report with Laparoscopic, Histopathologic and Immunohistochemical Findings

An 86-year-old Japanese woman underwent an examining laparoscopy for removing the huge pelvic tumor. At laparoscope examination, the cystic tumor was found within the left broad ligament, while the ovaries, fallopian tubes and uterus showed almost normal appearance. The tumor was removed together by total laparoscopic hysterectomy and bilateral salpingo-oophorectomies after the suction of serous content in the broad ligament. Cytological findings of the ascites suggested serous carcinoma. The resected ovaries and fallopian tubes were grossly and histologically normal. Histological examination of the solid part of broad ligament tumor, closely next to the fallopian tube, revealed a serous adenocarcinoma. Immunohistochemically, the tumor cells were strongly positive for CK7, WT-1, estrogen receptor, AE1/AE3 and EMA, and negative for CK20, D2-40 and calretinin. Also, they were negative for progesterone receptor and p53. The authors diagnosed the primary tumor as being a serous cystadenocarcinoma of the broad ligament [pTIC3NxM0, as modified and adapted to post-surgical staging of ovarian cancer (FIGO 2014)]. The patient has been receiving 6 cycles of adjuvant chemotherapies with one course with paclitaxel (PTX) and carboplatin (CBDCA) and five with PTX, CBDCA and Bevacizumab, and has no signs of recurrence and metastasis six months after the operation.

Obstructive jaundice due to hepatobiliary cystadenoma or cystadenocarcinoma

Hepatobiliary cystadenomas (HBC) and cystadenocarci- nomas are rare cystic lesions. Most patients with these lesions are asymptomatic, but presentation with ob- structive jaundice may occur. The first patient presented with intermittent colicky pain and recurrent obstructive jaundice. Imaging studies revealed a polypoid lesion in the left hepatic duct. The second patient had recurrent jaundice and cholangitis. Endoscopic retrograde cholan- giopancreatography (ERCP) showed a cystic lesion at the confluence of the hepatic duct. In the third patient with intermittent jaundice and cholangitis, cholangioscopy re- vealed a papillomatous structure protruding into the left bile duct system. In the fourth patient with obstructive jaundice, CT-scan showed slight dilatation of the intrahe- patic bile ducts and dilatation of the common bile duct of 3 cm. ERCP showed filling of a cystic lesion. All patients underwent partial liver resection, revealing HBC in the specimen. In the fifth patient presenting with obstructive jaundice, ultrasound examination showed a hyperecho- genic cystic lesion centrally in the liver. The resection specimen revealed a hepatobiliary cystadenocarcinoma. HBC and cystadenocarcinoma may give rise to obstruc- tive jaundice. Evaluation with cross-sectional imaging techniques is useful. ERCP is a useful tool to differentiate extraductal from intraductal obstruction.

Preoperative differential diagnosis between intrahepatic biliary cystadenoma and cystadenocarcinoma:A single-center experience

AIM:To investigate preoperative differential diagnoses made between intrahepatic biliary cystadenoma and intrahepatic biliary cystadenocarcinoma.METHODS:A retrospective analysis of patient data was performed,which included 21 cases of intrahepatic biliary cystadenoma and 25 cases of intrahepatic biliary cystadenocarcinoma diagnosed between April 2003and April 2013 at the General Hospital of PLA.Potential patients were excluded whose diagnoses were not confirmed pathologically.Basic information(including patient age and gender),clinical manifestation,duration of symptoms,serum assay results(including tumor markers and the results of liver function tests),radiological features and pathological results were collected.All patients were followed up.RESULTS:Preoperative levels of cancer antigen 125(12.51±9.31 vs 23.20±21.86,P<0.05)and carbohydrate antigen 19-9(22.56±26.30 vs 72.55±115.99,P<0.05)were higher in the cystadenocarcinoma subgroup than in the cystadenoma subgroup.There were no statistically significant differences in age or gender between the two groups,or in pre-or post-operative levels of alanine aminotransferase,aspartate aminotransferase,total bilirubin(TBIL),and direct bilirubin(DBIL)between the two groups.However,eight of the 21 patients with cystadenoma and six of the 25 patients with cystadenocarcinoma had elevated levels of TBIL and DBIL.There were three cases in the cystadenoma subgroup and six cases in the cystadenocarcinoma subgroup with postoperative complications.CONCLUSION:Preoperative differential diagnosis relies on the integration of information,including clinical symptoms,laboratory findings and imaging results.

Epidemiological feature,diagnosis and treatment of pancreatic cystadenoma and cystadenocarcinoma:a meta-analysis of 1865 cases

Objective:To study the epidemiological features of pancreatic cystadenoma and cystadenocarcinoma in China during the last 10 years and to analyze the diagnosis and treatment.Methods:Reports on pancreatic cystadenoma and cystadenocarcinoma published from 2000 to 2009 were retrieved from various databases,such as WANFANG data,VIP web and China National Knowledge Infrastructure(CNKI).The epidemiological features of pancreatic cystadenoma and cystadenocarcinoma and its diagnosis and treatment were analyzed.Results:Totally 1 865 patients with pancreatic cystadenoma and cystadenocarcinoma were reported in China during the last 10 years.The male to female ratio was approximately 1:2.1.The accurate ages were reported in 1 536 cases,the average age of them was 50.8 years,whose average age from 40 to 60 years old accounted 75.9% of the patients.65.3% of the cases were located in East China and Central China.Abdominal pain was the main clinical manifestation and was found in 54.9% of the patients.Pancreatoduodenectomy and resection of body and tail of the pancreas were the main procedure for the treatment of pancreatic cystadenoma and cystadenocarcinoma.Conclusion:Pancreatic cystadenoma and cystadenocarcinoma were mainly found in older women in East and Central China.Preoperative diagnosis is difficult.Pancreatoduodenectomy and resection of pancreatic body and tail were the main procedure for the treatment of pancreatic cystadenoma and cystadenocarcinoma.

肝内胆管囊腺瘤和囊腺癌的MRI鉴别诊断

目的分析肝内胆管囊腺瘤和囊腺癌之间的MRI表现差异,以提高对两种疾病的诊断准确率。方法分析经病理证实的24例囊腺瘤及10例囊腺癌患者的MRI表现,包括肿瘤部位、大小、瘤周胆管扩张,囊壁结节和强化方式等征象,并进行数据分析。结果24例囊腺瘤中单囊型5例,多囊型19例,多囊型病灶内有分隔,分隔菲薄且均匀;囊壁平均厚度(1.7±0.5)mm,伴瘤周胆管轻度扩张8例;增强后囊壁及囊隔中度强化5例,轻度强化19例。10例囊腺癌中单囊型6例,多囊型4例;10例均见囊壁不同程度增厚,平均厚度(2.2±0.7)mm;9例病灶囊壁见菜花状结节,伴瘤周胆管扩张8例;增强后囊壁中度强化8例,轻度强化2例。结论囊腺瘤和囊腺癌的分房、大小,瘤周胆管扩张,囊壁厚度,囊壁结节和强化方式的差异有统计学意义,MRI扫描及结合MRCP有助于诊断与鉴别诊断。

Endoscopic trans-pterygoid resection of a low-grade cribriform cystadenocarcinoma of the infratemporal fossa

This article presents a case of low-grade cribriform cystadenocarcinomas(LGCCC),a rare salivary gland tumor manifesting in the infratemporal fossa(ITF).The lesion in this case is unique in its location,histopathology,and management in that the tumor resection was performed using an exclusively endoscopic,endonasal approach.This case highlights the expanding application of endoscopic skull base techniques to address an indolent,slow-growing malignancy of the ITF.

肝胆管囊腺瘤和囊腺癌的CT、MRI表现及其与病理对照分析

目的 探讨肝胆管囊腺瘤和囊腺癌的CT及MRI表现,并与病理对照分析,以提高对该病的术前影像诊断准确性及鉴别诊断水平。方法 回顾性分析经手术病理证实的11例肝胆管囊腺瘤及囊腺癌患者的影像学征象及病理学特点,其中9例均行CT平扫及三期增强扫描,5例同时行MRI平扫及动态增强扫描。结果 在11例患者中,囊腺瘤8例,囊腺癌3例:11例均为单发,肝左叶7例,右叶3例,肝多叶受累1例;1例囊腺瘤为单囊性病灶,囊壁光整,CT见囊内主要表现为水样密度;1例囊腺癌以实性成为主,其余9例囊腺瘤及囊腺癌呈多发囊状,5例囊腺瘤囊壁光整,厚薄一致,部分分隔均匀增厚,增强扫描无强化或轻度强化;2例囊腺瘤有囊壁钙化;2例囊腺癌囊壁及其内分隔厚薄不一,增强扫描可见实性结节强化,门静脉期强化减退,呈“结节”状或“菜花状”,部分断面锯齿状改变。结论 肝胆管囊腺瘤及囊腺癌的CT、MRI表现,充分反映其病理学特点,注意病变的一些影像学特征性表现,如分隔不均匀增厚,囊壁“结节”或“菜花样”突起及伴有粗大钙化,在囊腺瘤及囊腺癌的鉴别诊断上具有重要意义。

卵巢浆液性囊腺癌中CAPN3的表达、预后及免疫浸润分析

目的 研究CAPN3在卵巢浆液性囊腺癌中的表达水平,明确其与卵巢浆液性囊腺癌预后及免疫浸润的关系。方法 通过GEPIA2、TIMER、TISIDB、Kaplan-Meier曲线分析CAPN3在卵巢浆液性囊腺癌中的表达谱、免疫浸润和预后价值。接着,利用STRING数据库构建了涉及CAPN3的蛋白质相互作用(protein-protein interaction, PPI)网络,GEPIA数据库分析了10个基因与CAPN3的相关性。结果 CAPN3在卵巢浆液性囊腺癌患者中呈低表达,随着卵巢浆液性囊腺癌的恶化,CAPN3的表达量降低。CAPN3表达水平与卵巢浆液性囊腺癌中大多数免疫标志物呈显著相关,包括CD16、STAT5A、STAT3、LAG-3等。此外,CAPN3还与4种免疫抑制剂(BTLA、CD274、CSF1R和LGALS9)和7种免疫刺激剂(CD276、CXCL12、HHLA2、IL-6、TMEM173、TNFSF13和ULBP1)显著相关。高表达CAPN3mRNA水平在卵巢浆液性囊腺癌患者中显示出较好的总生存期,但在无进展生存期表现不明显。调控网络的分析表明,TTN与CAPN3相关性最为显著。结论 CAPN3基因可能是预测卵巢浆液性囊腺癌的发生、发展及预后的肿瘤标志物。

Serous cystadenocarcinoma of the mesentery in a man:case report and review of literature

In February 2007,a 41-year-old Japanese male was admitted to our hospital with increasing upper abdominal pain.A contrast-enhanced computed tomography(CT)scan of the abdomen demonstrated a well-demarcated,hypodense cystic mass with a thickened wall in the mesocolon.The laboratory results were within normal limits,except for increased carcinoembryonic antigen,carbohydrate antigen 19-9,DUPAN-2 and SPAN-1.The patient was diagnosed as having a mesenteric malignant cyst,and during a laparotomy,a right hemicolectomy with mesenteric cystectomy was performed without rupture in March 2007.In the microscopic findings,there was a well-differentiated adenocarcinoma in the inner surface of the cyst and in the fibrous connective tissue of the hypertrophic cystic wall.The tumor cells were immunohistochemically reactive to cytokeratin(CK)7,CK18 and CK20.No remnant of the malignancy was detected in the resected margin of the colon,cyst,liver or peritoneum nor was an uptake detected in an 18[F]-fluorodeoxyglucose positron emission tomography/CT examination of other organs.Finally,the malignancy was concluded to be a serous cystadenocarcinoma of the mesentery.Nineteen months after the operation,the patient died from peritonitis carcinomatosa due to a small intestine rupture.This report suggests mesenteric cystadenocarcinomas originating in the ovary,oviduct and intestinal mucosa,but these were ruled out in our patient.In this report,we discuss a case of the malignant transformation of a cyst into adenocarcinoma,which to our knowledge has never been previously reported in a male patient.

卵巢子宫内膜样癌与高级别浆液性癌的MRI鉴别诊断

目的:比较卵巢子宫内膜样癌(OEC)与高级别浆液性癌(HGSC)的MRI特征,为两者的术前鉴别诊断提供依据。方法:回顾性选取2017年1月—2023年11月来宾市人民医院收治的24例OEC和49例HGSC患者,术前已行MRI影像检查并经临床手术病理证实,比较其临床特征及MRI特征并总结分析。结果:2种癌症的肿瘤标志物水平、有无贫血、肿瘤最大径差异均无统计学意义(P>0.05);而2种癌症的患者发病年龄、FIGO分期、单双侧发病、边界、实性部分最大径、肿瘤囊实性分布特点、囊性T_(1)WI信号、实性部分强化特点、实性成分DWI高b值信号特点、大量腹水发生率、淋巴结转移及腹膜种植转移、合并子宫内膜病变,差异均有统计学意义(P<0.05)。结论:OEC典型表现为大单囊伴“梳妆”乳头样偏心附壁肿块为主、囊内伴或不伴纤维分隔;HGSC表现以实性占比为主的多房囊实性肿块伴多发纤维分隔并可能双侧癌。