巨大卵巢黏液性囊腺瘤1例

患者女,68岁,以阴道流血半年收入院。查体:腹部膨隆,阴道内有暗红色血迹。整个盆腹腔被巨大囊性包块占据,表面光滑,无触痛及压痛,活动度差。影像学表现B超:子宫前位,大小约47mm×28mm×45mm,宫壁规整,肌层回声欠均匀,内膜线居中,厚约7mm。双侧附件区探查不清。腹盆腔内可见一巨大囊性占位,范围上界约达剑突下、下界达耻骨联合,左右至两侧腹,包块壁略毛糙,其内多个分隔呈囊性暗区,于囊后壁可见细沙样沉积物回声,CDFI:分隔无明显血流信号。诊断:①盆腹腔内巨大囊性包块,囊腺瘤?;②子宫内膜厚。MRI检查:盆腔及腹腔内巨大囊性占位性病变,约1…     

胰腺浆液性囊腺瘤与黏液性囊腺瘤的CT表现分析

目的:分析胰腺浆液性囊腺瘤与黏液性囊腺瘤的CT表现。方法:随机抽取胰腺囊性肿瘤50例,并根据腺瘤的类型分为观察组(浆液性囊腺瘤)26例和对照组(黏液性囊腺瘤)24例。2组均行CT检查,并对比检查结果。结果:2组病灶部位、形态、最大囊腔直径比较差异均有统计学意义(均P0.05)。结论:胰腺浆液性囊腺瘤与黏液性囊腺瘤的CT征象不同,CT可有效鉴别两者。     

胰腺黏液性囊腺瘤一例

患者女,60岁。发现左乳肿物半年、胰尾肿物3d入院。B超示:胰尾正常结构显示不清,相当于胰尾区见混合性回声,大小约9.8cm×8.1cm,外形欠规则,边界较清,彩色多普勒血流显像(CDFI)血流信号较少,肿物后方紧邻腹主动脉。腹腔内未见游离液体影。CT所见:胰腺体尾部可见一约9.5cm×8.5cm大小囊实性病变,以囊性为主,囊壁薄,边缘光滑,其内密度不均,可见多个乳头状软组织密度影,CT值5～35HU,病变周围境界清楚(图1)。增强后可见分格状改变,病变壁、分格及乳头状影明显强化,囊性部分无强化(图2)。胰头颈部未见异常。腹膜后未见增大淋巴结。CT诊断:…     

胰腺囊腺瘤1例

患者,女,57岁。上腹部隐痛2年,加重10天入院。入院查体:一般情况尚可,左中上腹触及一5cm×8cm肿块,界不清,球形,表面光滑,质地中等,囊状,固定,轻微压痛。脾未触及。B超检查提示:胰头2.3cm,体2.3cm,尾显示不清,胰尾区囊性占位。CT检查提示:胰尾部可见一囊性病灶,约11cm×     

阑尾黏液性囊腺瘤1例

<正>男,45岁,5年前无意中触摸到右下腹"鸡蛋样"大小包块,无不适,未行诊治,近半年来触感包块增大,偶伴隐痛,无发热、畏寒,两便正常,于2013年4月就诊。20年前有阑尾炎病史。外科检查:腹软,右下腹触及6cm×5cm大小包块,边界清,活动度好,轻压痛。实验室检查:WBC 7.8×109/L,尿常规检查阴性。腹部超声检查:右下腹探及5.4cm×3.5cm椭圆形混合回声包块,边界清,有包膜,内部透声差,超声诊断:右下腹囊实性混合包块(性质待定)。腹部CT平扫(见图1):阑尾增粗,盲肠左侧旁见一6.5cm×3.4cm椭圆形肿块,壁呈"蛋壳样"钙化,内部密度均匀,CT值约25 HU,边界清楚。     

胰腺黏液性囊腺瘤及囊腺癌的CT诊断鉴别分析

目的探讨胰腺黏液性囊腺瘤及囊腺癌的CT鉴别诊断。方法对我院收治的33例胰腺黏液性囊腺瘤患者及28例囊腺癌患者,均进行螺旋CT检查,分析其影像学鉴别要点。结果螺旋CT可清晰判断病变所处位置、囊状影形态、轮廓、边界、分隔状态及病灶直径、囊壁厚薄、增强时囊壁及分隔强化程度、钙化程度及与周围解剖结构的相关性。结论 CT诊断对有较好的指导意义,值得临床上推广应用。     

超声诊断卵巢黏液性乳头状囊腺瘤合并腹膜巨大假性黏液瘤1例

患者,女,52岁,自2007—05无诱因乏力,伴轻度腹胀,食欲下降,在当地医院就诊,超声检查提示腹腔少量积液。于2009—10出现腹胀加重伴纳差,口服消胀片不缓解,遂来我院就诊。常规检查发现腹部异常圆隆,可扪及肿块,质较软,界线不清,有轻微触痛。超声检查示腹腔被一巨大囊实混合性肿物所占据,上达剑突下,下至耻骨联合上方,左右至两侧髂嵴,无明显包膜回声。     

MRI纹理分析在单囊状胰腺囊腺瘤鉴别诊断中的价值

目的:比较胰腺寡囊型浆液性囊腺瘤(MaSCA)与粘液性囊腺瘤(MCN)磁共振成像(MRI)影像学及纹理特征差异,构建两者鉴别诊断模型.方法:回顾性搜集32例MaSCA与36例MCN患者,分别基于MRI压脂T1加权图像(FS-T1 WI)和压脂T2加权图像(FS-T2 WI)进行纹理分析并比较各纹理参数之间差异.采用Lo...     

胰腺黏液性囊腺肿瘤的CT表现

目的 探讨胰腺黏液性囊腺肿瘤的CT表现,以提高对该肿瘤的鉴别诊断水平.方法 回顾性分析20例经病理证实的胰腺黏液性囊腺肿瘤患者的CT资料,分别由2名医师采用盲法对肿瘤囊的数量、大小、位置、边界、壁厚度、分隔、肿瘤内钙化、壁结节和强化情况进行评价.所有患者均行CT平扫及增强扫描,比较良恶性病变患者上述征象的差异.采用Fisher检验进行统计学分析.结果 良性胰腺黏液性囊腺肿瘤(黏液性囊腺瘤)12例,恶性胰腺黏液性囊腺肿瘤8例(其中包括3例交界性黏液性囊腺瘤和5例黏液性囊腺癌).16例(16/20)病灶位于胰腺体尾部.12例良性黏液性囊腺瘤中出现厚壁4例,肿瘤内钙化和壁结节各2例;而8例恶性胰腺黏液性囊腺肿瘤中出现厚壁7例,肿瘤内钙化和壁结节各5例,厚壁、肿瘤内钙化和壁结节在良恶性肿瘤间差异有统计学意义(P<0.05).结论 胰腺黏液性囊腺肿瘤的CT表现形式多样,具有一定特征性,其征象有助于胰腺黏液性囊腺肿瘤的良恶性鉴别.     

Pancreatic mucinous cystadenoma communicating with the main pancreatic duct on MRI

We report a case of a mucinous cystadenoma of the pancreas communicating with the main pancreatic duct. To our knowledge, this is the first case in which a communication between the mucinous cystadenoma and the main pancreatic duct could be demonstrated by MRI.Mucinous cystic neoplasms (MCNs) of the pancreas are low-grade tumours and represent approximately 10% of pancreatic cysts and 1% of pancreatic neoplasms. MCN is a clinical and pathologic entity, distinctly different from intraductal papillary mucinous neoplasms (IPMNs). The absence of communication of the cyst with the pancreatic duct has been used by some as a criterion for diagnosing MCNs and differentiating these neoplasms from IPMNs [1].We report a case of a mucinous cystadenoma communicating with the main pancreatic duct. To our knowledge, this is the first case in which a communication has been demonstrated on MRI.     

肝胆管及胰腺粘液性囊腺肿瘤的CT影像与病理对照研究

目的：研究肝胆管或胰腺粘液性囊腺肿瘤的CT表现。方法：选取本院1989年1月～2002年6月间经手术病理证实的肝胆管或胰腺粘液性囊腺肿瘤12例，对其CT图像进行回顾性研究。结果：肝胆管囊腺肿瘤5例，其中囊腺瘤3例，囊腺癌2例；胰腺囊腺肿瘤7例，其中囊腺瘤4例，囊腺癌3例。钙化2例，腹腔及／或腹膜后淋巴结肿大2例，伴有其他脏器转移1例。结论：肝胆管或胰腺粘液性囊性肿瘤的CT表现具有一定的特征性，并为临床治疗提供指导。     

胃恶性间质瘤巨大溃疡1例

胃间质瘤（gastrisstromalTumor,GST）是较少见的胃黏膜下肿瘤。消化道钡餐造影、CT等影像学检查是临床常用的辅助诊断手段,对GST有一定的诊断价值。本文介绍1例继发巨大溃疡的胃恶性间质瘤,拟提高对该病的认识。     

阑尾黏液性囊腺瘤的CT表现

目的:探讨阑尾黏液性囊腺瘤的CT诊断价值。方法:回顾性分析经手术病理证实的6例阑尾黏液性囊腺瘤CT平扫和增强表现。结果:6例中4例阑尾囊状膨胀,4例密度不均匀,3例有曲线状壁的钙化,2例出现小壁结节,2例壁厚度大于3mm,6例瘤体直径大于15mm,5例出现环形壁强化及2例壁结节强化。结论:阑尾黏液性囊腺瘤CT表现为阑尾囊状扩张,密度不均,曲线状钙化壁,小壁结节,增强后瘤体边缘及壁结节强化。     

阑尾粘液性囊腺瘤的CT表现

目的 探讨阑尾粘液性囊腺瘤的CT特征及诊断价值,提高对其诊断的准确率.方法 回顾性分析11例经手术病理证实的阑尾粘液性囊腺瘤的临床资料及CT表现.结果 病灶位于右下腹近回盲部或右侧盆腔内,呈大小不等囊性肿块,8例呈类圆形、长管状,2例呈“逗号”征,1例呈分叶状.囊壁均匀或厚薄不均,4例囊壁有钙化.病灶均未见分隔,内容物CT值10～30HU.7例增强扫描中5例囊壁有强化,2例强化不明显,囊内容物无强化.10例病灶周围结构清晰,其中1例合并肠套叠突入盲肠内,1例与盲肠分界不清,周围并见淋巴结.结论 右下腹与盲肠相连类圆形、长管状或“逗号”样单房或多房囊性肿块,囊壁厚薄均匀或不均,肿瘤周围系膜正常,术前可提示阑尾粘液性囊腺瘤诊断.     

A male case of primary retroperitoneal mucinous cystadenoma: a diagnostic dilemma

We report a male case of primary retroperitoneal mucinous cystadenoma (PRMC) that was at initially misdiagnosed as a complicated renal cyst. On ultrasonography, a71-year-old man was found to have an abdominal mass suspicious for right renal cyst. The initial computed tomography scan showed an unenhanced, low-density mass that deformed the edge of the right kidney into a beak shape. Four years later, the mass had increased in size. Magnetic resonance imaging revealed a cystic lesion. Its intracystic content showed relatively high intensity on a T1-weighted image, and the coronal gadolinium-enhanced T1-weighted image with fat suppression clearly showed a multilocular cystic mass without enhancing mural nodules. The final diagnosis of PRMC was obtained pathologically after surgery. Because PRMC has malignant potential, this rare entity should be considered when a retroperitoneal cystic tumor is evaluated, even in a male patient.     

Leiomyoma of the ovary mimicking mucinous cystadenoma

We present a case of ovarian leiomyoma of a 46-year-old woman with a history of a palpable lower abdominal mass. A multiloculated multiseptated mainly cystic mass in the left adnexa on computed tomography (CT) was initially considered to be an ovarian mucinous cystadenoma. This mass, however, was proved to be a left ovarian vascular leiomyoma on the surgical pathology.     

Choriocarcinoma of the ovary associated with mucinous cystadenoma

We report choriocarcinoma of the ovary associated with mucinous cystadenoma in a 54-year-old postmenopausal woman, the first reported case of this condition. Doppler ultrasonography, computed tomography, and magnetic resonance imaging showed hypervascularity of the tumor that corresponded to the area of choriocarcinoma within the multilocular cyst. The patient exhibited multiple pulmonary metastases and died of intracerebral hemorrhage.     

阑尾黏液性囊腺瘤的CT诊断价值

目的：探讨阑尾黏液性囊腺瘤CT表现,提高其术前正确诊断水平。方法：经手术病理证实的7例阑尾黏液性囊腺瘤均行16层螺旋CT检查,常规行CT平扫加动态增强扫描。回顾性分析其CT表现。结果：所有患者术前CT均未能做出正确诊断,7例均表现为右侧髂窝处边缘光整的椭圆形、类圆形囊性肿块,MPR图像上表现为长椭圆形或类圆形,囊壁均匀薄壁4例,囊壁厚度不均并见乳头状突起及囊内分隔3例;动态增强扫描呈中等程度强化3例,无明显强化4例。阑尾管壁增厚、肿块邻近脂肪模糊1例,伴有腹腔内多发囊性肿块及腹腔积液1例。结论：当CT检查发现右侧髂窝处囊性肿块,囊壁厚度不均伴或不伴有囊内分隔及乳头状突起等CT表现时,影像科医师应考虑到阑尾黏液性囊腺瘤的诊断,从而避免发生医源性腹腔假性黏液瘤。