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1.
P Dubayle H Daigremont J C Solacroup B Muyard P Nun G E Gueguen G Gbehi Beugre G Clavel E Le Bihan J Levot 《Journal de radiologie》1992,73(4):243-246
A case of an adult intussusception secondary to a fibroid polyp of the terminal ileum is reported. Adult intussusceptions are observed rarely, usually caused by an organic lesion. The preoperative diagnosis is based on US patterns, target aspect and sandwich sign. 相似文献
2.
Inflammatory fibroid polyp of the colon simulating malignancy 总被引:1,自引:0,他引:1
The authors report an inflammatory fibroid polyp of the colon which simulated a tumor on the air-contrast barium-enema examination. Histological evaluation revealed the inflammatory nature of the polyp. These rare lesions can be radiographically indistinguishable from primary colon carcinoma. 相似文献
3.
Inflammatory fibroid polyp is a rare benign lesion of the gastrointestinal tract, frequently seen in the antrum of the stomach.
We report a case of a 50-year-old man with a large inflammatory fibroid polyp and located in the cardia of the stomach. Corresponding
computed tomography, endoscopy and histology findings are discussed. 相似文献
4.
The angiomatous polyp corresponds to the vascular compromised nasochoanal part of a sinochoanal polyp. We describe the MRI
characteristics of such lesions in four patients. All patients had an angiomatous polyp, in three cases as part of an antrochoanal
polyp, and in one case as part of a sphenochoanal polyp. The unenhanced MR images depicted the typical appearance of a sinochoanal
polyp, hypointense on T1-weighted and hyperintense on T2-weighted images. On gadolinium-enhanced MR images, the sinusal part
showed little or no peripheral enhancement; however, the nasochoanal part, corresponding to the angiomatous polyp, showed
strong enhancement. An angiomatous polyp mimics a hypervascular mass lesion on enhanced MR studies. The anatomic location
and association with a sinusal polyp allows the correct diagnosis.
Received: 7 September 1999 Revised: 8 June 2000 Accepted: 9 June 2000 相似文献
5.
A 25-year-old male patient who had a brother with Crohn's disease was referred to our clinic with bloody diarrhea and crampy
abdominal pain. After a plain erect abdominal X-ray, enteroclysis was performed, followed by abdominopelvic CT. Besides the
radiological features of CD, both enteroclysis and CT revealed a big polypoid filling defect in the small intestine. The patient
was surgically treated and the histopathology of the specimen revealed a giant fibroid polyp superimposed on CD, an extremely
rare complication heretofore unmentioned in the radiology literature. In this report we discuss the role of enteroclysis in
the diagnosis of complicated cases of long-standing CD. In addition, we also shed light on the importance of both enteroclysis
and CT, with their complementary findings, in the radiological diagnosis of rare complicated cases of CD.
Received: 20 May 1998; Revision received: 29 December 1998; Accepted: 21 June 1999 相似文献
6.
Idiopathic granulomatous hypophysitis is a rare inflammatory disease of unknown aetiology; few cases are reported. We review
the clinical presentation and radiological characteristics of these cases and our own experience with three new surgical cases,
to determine diagnostic criteria. MRI of three cases revealed sellar lesions extending into the chiasmatic cistern. Their
shape varied, from dumbbell to spherical and elliptical. All were isointense with the brain on T1-weighted images and gave
heterogeneously high signal on T2-weighted images. Contrast enhancement was homogeneous in one case and heterogeneous in another.
The pituitary stalk could not be identified. There was no dural enhancement. The sphenoid sinus mucosa was thickened in two
cases and normal in one.
Received: 14 January 2000/Accepted: 2 May 2000 相似文献
7.
Progressive pseudorheumatoid dysplasia 总被引:5,自引:0,他引:5
A rare case of progressive pseudorheumatoid dysplasia (PPD) in a 9-year-old girl is presented. Clinically, chronic painless
swollen joints, accompanied by progressive motion restriction and progressive walking difficulties, were found. Radiologically,
there was enlargement of the epimetaphyseal portions of the large joints, metacarpal heads, and phalanges, and generalized
platyspondyly with irregular delineation of the endplates of the vertebral bodies. The radioclinical features at the peripheral
joints were originally misdiagnosed as juvenile rheumatoid arthritis (JRA), and the structural spinal abnormalities were neglected
and interpreted as Scheuermann's disease. However, the absence of active inflammatory parameters argues against JRA, whereas
the low age of onset of the irregularities at the vertebral endplates is an argument against the diagnosis of Scheuermann's
disease. The combination of the dysplastic abnormalities of the spine, with platyspondyly and Scheuermann-like lesions at
an unusually low age of onset, and radiological features mimicking JRA of the peripheral joints, is the clue to the diagnosis
of this rare autosomal-recessive disease. This case is the first to document the MRI features of PPD of the spine.
Received: 22 February 2000; Revised: 5 May 2000; Accepted: 9 May 2000 相似文献
8.
Nicola Magarelli Giuseppe Guglielmi Luigi Di Matteo Armando Tartaro Peter A. Mattei Lorenzo Bonomo 《European radiology》2001,11(6):1039-1046
The purpose of this study was to first evaluate Levovist (Schering, Berlin, Germany), an echo-contrast agent, during power
Doppler sonography (PDS) in patients with synovitis using asymptomatic joints as controls. Then we evaluated the accuracy
of this technique against contrast-enhanced MRI. Forty patients (19 men and 21 women; mean age 40 years) were enrolled on
the basis of clinical signs, laboratory tests, and radiographic findings positive for articular inflammatory disease. They
were examined with conventional ultrasonography (US) and PDS techniques before and after intravenous contrast medium injection.
Fourteen patients then underwent MRI with and without contrast medium 8–14 days after PDS studies. Three expert readers independently
evaluated each examination. After contrast medium, synovium in inflammatory arthritis enhanced on PDS compared with normal
joints in the same patient. Power Doppler sonography after contrast medium and MRI were concordant in all cases. Power Doppler
sonography with contrast medium showed a qualitative increase in signal from synovial vessels, the first sign of synovial
changes in inflammatory diseases.
Received: 10 February 2000 Revised: 27 July 2000 Accepted: 1 August 2000 相似文献
9.
We present the second case of Klippel-Feil syndrome in association with a posterior fossa dermoid cyst extending through
the occipital bone and presenting as a suboccipital subcutaneous mass. We describe its radiographic, CT, and MRI appearances
as well as on MRI diffusion-weighted images. Posterior cranial fossa dermoid cysts and sinuses should be added to the list
of congenital abnormalities which must be sought in patients with Klippel-Feil syndrome. Diffusion-weighted images of brain
may differentiate these masses from cerebral spinal fluid collections.
Received: 8 February 2000 Revised: 22 May 2000 Accepted: 23 May 2000 相似文献
10.
大肠多发炎性息肉的X线特征及发展趋向 总被引:1,自引:0,他引:1
目的探讨慢性炎症后的大肠多发性息肉的X线特征及其进一步发展趋向。材料和方法对58例大肠多发性息肉的X线表现特征与临床、病理及内窥镜所见进行对照分析。结果58例大肠多发炎性息肉全部由溃疡性结肠炎发展而来,其中肉芽肿性息肉32例;纤维性息肉19例;腺瘤性息肉5例;腺瘤性息肉伴少许癌细胞浸润2例。结论(1)大肠多发炎性息肉是由于慢性炎症刺激所致的肉芽组织、纤维组织及腺体组织增生混合而成,少数可发生恶变;(2)在大肠慢性炎症中,以溃疡性结肠炎最易导致多发炎性息肉及腺瘤性息肉形成;(3)X线双重造影检查显示除典型慢性炎症征象外,多发息肉形似“蟾蜍皮”或“蜂窝状”结肠双对比征象是其特征。 相似文献
11.
Li W Brophy DP Chen Q Edelman RR Prasad PV 《Journal of magnetic resonance imaging : JMRI》2000,12(6):1004-1008
The feasibility of using first pass dynamic contrast-enhanced MRI to monitor semiquantitatively the perfusion changes of the uterus after uterine arterial embolization is demonstrated. Ten women, who underwent uterine arterial embolization for fibroid treatment, were included in this study. To derive a perfusion index, an additional axial slice through the abdominal aorta was obtained simultaneously when acquiring MR perfusion data. This technique may prove valuable in monitoring the outcome of uterine arterial embolization and documentation of preserved uterine perfusion after this procedure. J. Magn. Reson. Imaging 2000;12:1004-1008. 相似文献
12.
Harman M Zeteroğlu S Arslan H Sengül M Etlik O 《Acta radiologica (Stockholm, Sweden : 1987)》2006,47(4):427-435
PURPOSE: To assess the magnetic resonance imaging (MRI) signal and contrast-enhancement features of uterine fibroids before and after embolization, and to determine whether or not there are pre-embolization MRI characteristics that predict the volume reduction of fibroids. MATERIAL AND METHODS: Uterine fibroid embolization (UFE) was carried out in 28 fibroids of 20 patients, all of whom were symptomatic. The patients were prospectively evaluated with T1-weighted, T2-weighted, and gadolinium-enhanced T1 MRI sequences before and 6 months after embolization. The relationship between the characteristics of MRI signal and contrast-enhancement features of fibroids before the procedure and the change in size of the lesions after treatment was investigated. RESULTS: Before embolization, the mean volume of fibroids was 123 cm3 (8-560 cm3). The decrease rate in fibroid volumes was 44.6% (range 7-70%) 6 months after embolization. Volume reduction was more prominent in fibroids that had a high signal intensity on T2-weighted images and a marked contrast enhancement on T1-weighted images (P < 0.001). However, the volume reduction was insufficient in fibroids with high signal characteristics on pre-contrast T1-weighted images (P < 0.001). CONCLUSION: MRI is an effective method for revealing size and signal changes of fibroids after embolization. MRI signal characteristics and the contrast-enhancement pattern of fibroids before embolization can predict tumor volume reduction after embolization. 相似文献
13.
Jain TP Srivastava DN Sahu RP Thulkar S Sharma S Mittal S Dadhwal V 《Australasian radiology》2007,51(3):246-252
The aim of this study was to determine the effectiveness of uterine artery embolization (UAE) as a primary treatment method in treatment of symptomatic fibroids, whether there are any preembolization MRI characteristics of fibroid predictive of reduction in volume and assess reduction in uterine and dominant fibroid volumes using ultrasound (US) and MRI. Study was carried out in total of 32 patients aged 25-49 years (mean 40.9 years). Uterine and dominant fibroid volume were determined using US and MRI before UAE, MRI and US at 3 months and US alone at 6 and 12 months post-UAE, supplemented by clinical evaluation at interval of 3, 6 and 12 months. Procedure was carried out through unilateral femoral puncture using poly vinyl alcohol (PVA) particles 355-500 microm in size. All 32 patients had successful procedures. Overall, 25 patients responded, giving a clinical success rate of 78.12%. Mean reduction in volume of uterus and fibroid was 33 and 59.7% and 48.9 and 75.5% on US at 3 and 12 months respectively, and 33.3 and 58.6% on MRI at 3 months. Volume reduction on US and MRI at 3 months was highly correlative. There was no statistical difference in size reduction in volume of fibroids, which were hypointense or hyperintense on T2-weighted image (T2WI) on pre-UAE MRI. Uterine artery embolization leads to good technical success and fibroid volume reduction. Ultrasound alone may be used for follow up of patients post-UAE. Preprocedure signal characteristics on T2WI are not predictors of volume reduction after UAE. 相似文献
14.
Intussusception of the appendix into the caecum is an uncommon condition and the diagnosis is rarely made preoperatively. Specific anatomic requirements as well as pathological conditions that cause irritation or increased peristalsis should be present for this event to occur. A case is discussed in which the diagnosis was made preoperatively by barium enema and in which the lead point was a large inflammatory polyp due to Crohn's disease. It appeared in this case that inflation at the time of the barium enema resulted in reduction of the intussusception. 相似文献
15.
B Wallner J M Friedrich W Oettinger 《R?ntgen-Bl?tter; Zeitschrift für R?ntgen-Technik und medizinisch-wissenschaftliche Photographie》1990,43(2):78-79
A unusual case of colorectal intussusception after transanal surgery of a polyp of the sigmoid colon is presented. Clinical Signs consisted of transanal bleeding and mucous diarrhoe. The diagnosis was established after an enema with water-soluble contrast media and computed tomography of the pelvis. The radiological appearance was similar to that of intussusception at other sites of the large bowel: The enema showed a sharply outlined filling defect whereas CT demonstrated a target-like intraluminal mass. 相似文献
16.
目的:探讨M RI在诊断卵巢蒂扭转中的应用价值。方法回顾性分析13例经手术病理证实的卵巢蒂扭转患者的M RI表现特点,提高对本病的认识。结果本组13例中,原发性卵巢蒂扭转3例;继发性卵巢蒂扭转10例:卵巢单纯性囊肿5例,卵巢巧克力囊肿2例,卵巢浆液性囊性腺纤维瘤、卵巢卵泡膜纤维瘤及卵巢畸胎瘤各1例。M RI均表现为盆腹腔区异常信号肿块。肿块局部与一侧宫角及附件相连12例,另1例为2月婴儿,子宫显示不清。扭转的卵巢蒂呈典型结节征(或漩涡征)5例,悬挂征4例,三角征4例。合并盆腔积液6例,妊娠1例,子宫肌瘤1例,对侧卵巢巧克力囊肿1例。结论卵巢蒂扭转的M RI表现具有一定特征,是超声等检查的有益补充。 相似文献
17.
Twenty-two patients with fracture of the scaphoid treated by cast immobilisation underwent clinical examination, radiography
and MR scanning 6 weeks after injury. On clinical and plain radiographic criteria alone, 12 patients were considered sufficiently
healed to warrant mobilisation. The remaining 10 patients were considered unhealed and were immobilised for a further period.
A musculoskeletal radiologist, blinded to the clinical diagnosis, reviewed the MRI scans. Of the 10 patients considered unhealed,
5 had the MR appearances of a united fracture, based on normal marrow signal across the fracture line on T1-weighted images.
Of the 12 patients deemed to have united, union could be confirmed by MRI criteria in only 5, but all 12 were healed at 1
year. The results suggest that MRI can provide additional information in this group of patients. It can confirm bony union
in a high proportion of patients deemed clinically non-united. Its use in this context will allow a more rapid mobilisation
and return to normal function. The significance of persistent MR signal abnormalities in patients who have clinical and radiographic
signs of healing merits further study.
Received: 13 March 2000, Revised: 12 May 2000, Accepted: 15 May 2000 相似文献
18.
Purpose To retrospectively evaluate the relationship between the degree of infarction of uterine fibroids on enhanced MRI after embolization
and long-term clinical outcomes.
Methods During 92 months, 290 consecutive patients with symptomatic uterine fibroids were treated with embolization; 221 who underwent
enhanced MRI before embolization and 1 week after embolization were included in this study. The infarction rates of all fibroid
tissue were assessed using enhanced MRI after embolization. Patients were divided into three groups according to the infarction
rates: group A (100% infarction, n = 142), group B (90–99% infarction, n = 74), group C (<90% infarction, n = 5). The cumulative rates of clinical outcomes were compared among groups using the Kaplan-Meier limited method.
Results Group A had a significantly higher rate of symptom control than groups B and C. The cumulative rates of symptom control at
5 years were 93%, 71%, and 60% in groups A, B, and C, respectively. Group A had a significantly lower rate of gynecologic
intervention after embolization than groups B and C. The cumulative rates of additional gynecologic intervention at 5 years
were 3%, 15%, and 20% in groups A, B, and C, respectively.
Conclusions The degree of infarction of uterine fibroids after embolization on enhanced MRI was related to long-term clinical outcomes.
Complete infarction of all fibroid tissue can induce a higher rate of symptom control, with a lower rate of additional gynecologic
intervention in the long term compared with incomplete infarction of fibroid tissue. 相似文献
19.
Magnetic resonance imaging and ultrasound are the imaging modalities recommended in the early diagnosis of Fournier's gangrene.
Because of the high mortality of this inflammatory disease early diagnosis is essential to initiate adequate surgical and
medical treatment. In the clinical literature only a handful of cases, in which diagnosis of Fournier's gangrene is based
on MRI findings, have been reported; therefore, we report another case which shows the ability of MRI especially to determine
the point of origin and extension of disease.
Received: 5 April 2000 Revised: 3 July 2000 Accepted: 4 July 2000 相似文献
20.
PURPOSE: To assess the feasibility and effectiveness of ultrasonography (US)-guided pneumatic reduction of intussusception in children. MATERIALS AND METHODS: The study group consisted of 49 consecutive patients (aged 2 months to 7 years; 36 boys, 13 girls) who underwent 52 reductions of intussusception during 9 months. Intussusception was diagnosed in all patients with the known US criteria, and all patients underwent a US-guided pneumatic reduction attempt wholly within the US examination room. A pressure of 60 mm Hg was maintained for 30 seconds, with US guidance. The procedure was considered to be successful when US showed the disappearance of the intussusceptum and the edematous terminal ileum with an abrupt transition into the normal proximal ileum. When the intussusception was not reduced, the procedure was repeated, with pressure increased to 120 mm Hg. RESULTS: The overall success rate of US-guided pneumatic reduction was 92% (48 of 52 reductions), with no immediate recurrence. Of the two patients who had intussusceptions that were irreducible, one had residual ileoileal intussusception at surgery, and the other had an ileal polyp as a lead point. Perforation occurred in two (4%) of 52 cases; one patient underwent right hemicolectomy due to bowel necrosis and had a pinpoint perforation in the normal proximal transverse colon, and the other underwent manual reduction of ileoileocolic intussusception, with microperforation in the proximal transverse colon. CONCLUSION: US-guided pneumatic reduction seems to be a feasible and effective method for the treatment of intussusception in children because of its radiation-sparing effect and high success rate. 相似文献