脐尿管癌的多层螺旋CT诊断

目的探讨多层螺旋CT在诊断脐尿管癌的应用价值。方法回顾性分析11例经手术病理证实的脐尿管腺癌患者的CT表现。结果经横断位图像及重建矢状位图像显示11例肿瘤均表现为脐与膀胱顶部之间中线部位的占位性病变。11例中肿瘤浅分叶8例,类圆形3例,7例为囊实性,4例为实性;平扫肿瘤内可见点状、斑片状或环形钙化8例,增强后肿瘤实性成分明显强化11例,11例肿瘤局部与膀胱分界不清,其中4例见肿瘤压迫/突入膀胱,肿瘤腹膜转移合并腹水3例,胸壁、腹壁及腹腔内转移1例,术前诊断脐尿管癌9例,1例误诊为膀胱癌,1例误诊为卵巢囊腺瘤,CT诊断符合率81.8%。结论脐尿管癌的多层螺旋CT表现有一定特征性,多层螺旋CT检查并对其定性和定位诊断具有很高的应用价值。     

正常脐尿管及脐尿管病变的MSCT诊断

目的:探讨多层螺旋CT(MSCT)对正常脐尿管及脐尿管病变的显示情况,提高对脐尿管及其病变的认识,指导临床合理选择检查方法.方法:收集腹部MSCT平扫或增强扫描病例228例,均对其脐尿管进行多平面重组(MPR)处理,按性别分为两组,观察正常脐尿管的显示率、长度、大小与性别的关系,按年龄段分四组(20岁以下,21～40岁,41～60岁,60岁以上),观察各年龄组脐尿管的显示情况并分析经手术病理证实的8例脐尿管病变的CT征象.结果:MSCT轴位图像结合多平面重组图像对脐尿管全程显示30例(30/228,女性8例,男性22例);部分显示39例(39/228,女性13例,男性26例);未见显示162例(159/228,女性75例,男性84例).脐尿管长度为2.30～17.89cm,平均长度为13.84cm;底部前后径为2～11.0mm平均宽度为5.35mm;底部左右径为3.0～9.5mm,平均宽度为7.95mm.41～60岁组脐尿管显示率最高(37.8%),20岁以下组脐尿管显示率最低(13.3%).脐尿管病变8例为脐尿管憩室5例(其中4例合并结石),脐尿管囊肿1例,脐尿管肿瘤1例,脐尿管未闭1例.结论:MSCT轴位图像结合多平面重组图像对各年龄组脐尿管的显示有明显差异性,且与年龄、性别有关,MSCT能明确脐尿管病变的部位和性质,是脐尿管病变的首选检查方法.     

脐尿管病变的CT诊断

目的 探讨脐尿管病变的CT表现及其临床诊断价值。方法 回顾分析23例经手术病理证实的脐尿管病变的CT表现，包括病灶部位、形态、大小、增强以及Retzius间隙影像改变。结果 全部23例脐尿管病变均位于腹中线处Retzius间隙内的脐尿管走行区。1例脐尿管未闭CT显示阴性。2例单纯性脐尿管囊肿表现为椭圆形或长条状囊性病灶，囊壁光整，囊内密度均匀，增强后无强化。5例脐尿管囊肿伴感染者表现为形态类似的囊性块影，壁厚强化明显，另3例病灶呈多房状，2例呈均匀软组织块影，伴感染之10例在灶周Retzius间隙内均见多少不等的片絮状或索条状密度增高影。7例脐尿管肿瘤均位于中线位膀胱顶壁区，呈不规则软组织肿块状，增强后强化明显4例，轻度强化2例，无明显强化1例。3例膀胱脐尿管憩室伴结石表现为横贯膀胱壁内外的高密度影，另1例伴发脐下脐尿管囊肿感染。结论 由于其独特的解剖部位，术前脐尿管病变很容易为CT识别，当脐尿管囊肿合并感染呈均质软组织块时需与脐尿管肿瘤相鉴别。     

脐尿管癌的CT诊断

目的:探讨脐尿管癌的螺旋CT表现特点,提高对本病的认识。方法:回顾性分析7例经手术病理证实的脐尿管癌的螺旋CT表现,包括肿块的部位、形态、大小及增强表现。结果:7例病理均为腺癌或黏液腺癌。CT均表现为脐尿管与膀胱交界区大小不等的软组织肿块,5例肿块同时向腔内外生长,1例腔内生长为主,1例肿块主要位于腔外。肿块形态不规则,6例伴有周围膀胱壁受侵增厚。1例肿块内见多个斑点状钙化。增强扫描5例呈不均匀强化,2例强化均匀,7例静脉期均明显强化。结论:脐尿管肿瘤有其独特的发生部位,影像表现典型,术前CT检查能够做出准确定位与定性诊断。     

脐尿管病变的CT诊断

目的:探讨脐尿管病变的CT表现特点及诊断价值。方法:对15例经手术病理证实脐尿管病变的CT表现进行回顾分析。结果:15例病变均位于脐尿管走行区。其中脐尿管囊肿5例,4例单纯性囊肿均表现为圆形或椭圆形囊性病灶,囊壁光整,增强后无强化;1例囊肿合并感染者呈多房状,囊壁毛糙,强化明显,周围脂肪组织炎性水肿渗出。4例脐尿管肿瘤发生于脐尿管膀胱交界区,呈不规则软组织肿块,增强后肿块强化明显。6例脐尿管结石,5例位于膀胱脐尿管交界区,1例位于脐尿管近膀胱段,均表现为单发或多发的圆形或类圆形高密度影,边缘光整。结论:脐尿管囊肿、肿瘤及结石的CT表现均有各自特征性,术前CT可做出明确诊断。     

脐尿管囊肿MSCT影像表现

脐尿管囊肿为少见的先天性泌尿系统发育畸形,是成人脐尿管病变中最常见的发病类型,占所有畸形的约30%。男女发病率无明显差异,30岁以下患者发病以脐部表现为主,而30岁以上者以膀胱表现为著[1]。囊肿大小不等,一般无明显症状,多在囊肿变大或者体检时发现。先天性脐尿管疾病一旦确诊,在感染控制后应早切除[2]。本文回顾性分析脐尿管囊肿的MSCT表现,以提高对本病诊断水平。     

脐尿管病变的影像学诊断

目的探讨15例脐尿管病变的X线、CT征象,提高对该病的认识。方法对15例经手术和病理证实,且有X线、CT检查的脐尿管病变资料进行回顾性分析。结果脐尿管瘘并感染4例,脐尿管囊肿5例,其中1例合并感染,脐尿管恶性肿瘤6例。脐尿管囊肿和恶性肿瘤表现为近下腹部中线的病灶,恶性肿瘤呈囊实性,为周边强化或结节状强化。结论X线和CT检查能显示脐尿管病变的部位、形态、密度及邻近组织的关系,提高对其影像学特点的认识,有利于该病变的正确诊断并指导临床治疗。     

脐尿管囊肿的CT表现及分型探讨

目的探讨脐尿管囊肿的CT影像学表现及分型,以提高对该病的认识水平。方法对12例经手术或病理证实且有完整CT检查资料的脐尿管囊肿进行回顾性分析,并根据其平扫密度将其分为单纯囊肿型、混合性肿块型、实性肿块型3种类型。结果所有病例均发生在腹中线脐尿管走行区,单纯囊肿型3例;混合性肿块型8例,均为脐尿管囊肿伴感染,矢状位重组显示肿块连接于膀胱顶壁与脐之间,其中7例病灶周围Retzius间隙内呈片絮状或索条状高密度影,7例局部壁层腹膜规则增厚呈"海鸥征"改变,5例病灶邻近膀胱者膀胱壁受累增厚,4例膀胱前部受压,3例与腹直肌粘连,2例呈多房状改变,2例肿块实质部分内见点状钙化;实性肿块型1例。结论脐尿管囊肿解剖部位独特,CT表现多样,若伴慢性感染以混合性肿块型多见,CT能显示脐尿管囊肿的部位、形态、密度及与邻近组织的关系,认识其CT影像表现及分型,有利于对该病的正确诊断及鉴别诊断。     

脐尿管肿瘤的螺旋CT表现及诊断价值

目的:探讨脐尿管肿瘤的螺旋CT表现特征及诊断价值。方法:对10例经手术病理证实的脐尿管肿瘤的CT、临床资料进行回顾分析。结果:10例中,脐尿管癌8例,良、恶性间质细胞瘤各1例。主要CT表现为膀胱脐尿管交界区的实性不规则软组织肿块,常浸润周围膀胱壁,少数肿块内可见钙化,增强后多强化明显。临床以血尿为主要表现。结论:CT不仅可对脐尿管肿瘤作出定位、定性诊断,而且能够明确肿瘤的范围及其与邻近组织结构的关系,对临床手术治疗有指导作用。     

脐尿管异常的CT诊断(附六例报告)

目的探讨脐尿管异常的CT表现，旨在提高对该病的认识和合理地选择检查方法。方法6例脐尿管异常患者均经CF扫描（平扫及增强）诊断和手术病理确诊。结果6例中1例脐尿管瘦伴感染，1例脐尿管移行细胞癌，2例脐尿管囊肿，1例脐尿管囊肿伴感染，1例脐尿管囊肿伴脐尿管腺癌。CF表现为下腹壁近中线的囊性占位；增强扫描，周边强化或结节状强化。囊壁不规整，结节状突起者是恶变的征象。结论CT检查能明确病变的部位、形态、范围、密度及与邻近结构的关系，对临床治疗有指导作用。CT是诊断该病有价值的检查方法。     

Urachal carcinoma

Urachal carcinoma is a rare tumor that often does not manifest clinically until late in its course. Several radiographic features are helpful in suggesting the diagnosis preoperatively. We present a case of urachal carcinoma in which preoperative evaluation included magnetic resonance imaging. This technique was helpful not only in suggesting the diagnosis preoperatively, but also, and more importantly, in the preoperative staging of the neoplasm.     

Urachal carcinoma

Urachal carcinoma is a rare tumor that often does not manifest clinically until late in its course. Several radiographic features are helpful in suggesting the diagnosis preoperatively. We present a case of urachal carcinoma in which preoperative evaluation included magnetic resonance imaging. This technique was helpful not only in suggesting the diagnosis preoperatively, but also, and more importantly, in the preoperative staging of the neoplasm.     

Urachal carcinoma: CT findings

The computed tomographic (CT) appearance of urachal carcinoma in ten patients was studied and compared with the pathologic findings. Magnetic resonance images were available in one case. All tumors were mucinous adenocarcinomas; four were solid, three were cystic, and three were mixed. The tumor had a characteristic location along the expected midline course of the urachus directly behind the anterior abdominal wall. The main tumor mass was supravesical in eight patients. Seven tumors contained calcification. CT correctly depicted bladder wall involvement and supravesical extent of tumor in all cases. CT provided incorrect information about invasion of the perivesical fat in three patients and about bladder mucosal invasion in two patients.     

脐尿管癌1例报告

患者男,52岁.l周前无明显诱因出现间断性全程肉眼血尿入院.患者无尿频、尿急、尿痛,无腰腹部疼痛等不适症状,既往史无特殊.尿液检查示:尿中红细胞量大于1 ml/L,未见红细胞管型、变形红细胞,尿蛋白(-);尿沉渣检查示:镜下完整红细胞.泌尿系超声示:膀胱前壁可见一低回声结节,大小约2.5 cm×3.0cm,部分侵入膀胱...     

Urachal carcinoma: evaluation with computed tomography

The computed tomographic (CT) findings in 7 patients with urachal carcinoma were reviewed. Computed tomography was useful in establishing an initial diagnosis, determining the tumor extent, and visualizing tumor recurrence. The embryology, histology, and clinical course of urachal carcinoma are reviewed.     

Urachal carcinoma: Evaluation with computed tomography

The computed tomographic (CT) findings in 7 patients with urachal carcinoma were reviewed. Computed tomography was useful in establishing an initial diagnosis, determining the tumor extent, and visualizing tumor recurrence. The embryology, histology, and clinical course of urachal carcinoma are reviewed.     

Urachal cyst complicated with carcinoma: diagnosis by magnetic resonance imaging

A urachal tumor occurring within a cyst of a 37-year-old man is presented. The tumor was examined by computed tomography and magnetic resonance imaging. Sagittal scans of magnetic resonance imaging were most useful to diagnose the urachal cyst and determine the extent of the tumor.     

脐尿管囊肿1例报告

患者男,54岁。无痛性肉眼血尿2周。无尿频、尿急,无发热、消瘦、乏力。影像学检查:CT表现为膀胱顶正中部壁内,见大小约1.61cm×1.18cm软组织肿块影向膀胱腔内外局限性膨出,累及膀胱壁全层,边缘光整,密度均匀。增强后肿块无明显强化。肿块后缘见点状钙化。膀胱充盈佳,膀胱底部和两侧壁光整,无异常增厚,膀胱前间隙清楚(图1,2)。精囊及前列腺无异常。考虑膀胱顶部脐尿管肿瘤。MRI表现为膀胱前壁顶部正中见一卵圆形短T1WI长T2WI软组织肿块信号,大小约1.74cm×1.28cm,病灶前缘与前腹壁分界清楚,后缘向膀胱腔内突起,冠状位和正中矢状位病灶位…