scholarly journals Inguinal ureter herniation evaluated with magnetic resonance imaging: a case report

2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Matteo Renzulli ◽  
Guido Marzocchi ◽  
Giulio Vara ◽  
Beniamino Corcioni ◽  
Anna Maria Ierardi ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Urinary Tract ◽  
Magnetic Resonance ◽  
Inguinal Canal ◽  
Rare Condition ◽  
Resonance Imaging ◽  
Intravenous Contrast ◽  
Case Presentation ◽  
Full Study ◽  
First Time

Abstract Background The herniation of the ureter into the inguinal canal is a rare condition, but probably underreported. Acquired nephroptosis could cause herniation of the ureter and, therefore, when diagnosed, a full study of the urinary tract should be performed especially in patients with inguinal hernia. Case presentation We present the case of an 86-year-old white man with a herniated ureter likely caused by acquired nephroptosis presenting with acute urinary retention, documented with magnetic resonance imaging for the first time. Conclusions The Fast Imaging Employing Steady State Acquisition sequence on magnetic resonance imaging, for many reasons, could allow correct evaluation of the urinary tract, especially in cases of renal dysfunction that contraindicate the use of intravenous contrast agents.

scholarly journals Lymphangiography and focal pleurodesis treatment of chylothorax with an aberrant thoracic duct following oesophagectomy: a case report

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Tomoyuki Ishida ◽  
Jun Kanamori ◽  
Hiroyuki Daiko
Keyword(s):  
Magnetic Resonance Imaging ◽  
Interventional Radiology ◽  
Case Report ◽  
Magnetic Resonance ◽  
Thoracic Duct ◽  
Rare Case ◽  
Resonance Imaging ◽  
Case Presentation ◽  
Thoracostomy Tube ◽  
Magnetic Resonance Imaging Mri

Abstract Background Management of postoperative chylothorax usually consists of nutritional regimens, pharmacological therapies such as octreotide, and surgical therapies such as ligation of thoracic duct, but a clear consensus is yet to be reached. Further, the variation of the thoracic duct makes chylothorax difficult to treat. This report describes a rare case of chylothorax with an aberrant thoracic duct that was successfully treated using focal pleurodesis through interventional radiology (IVR). Case presentation The patient was a 52-year-old man with chylothorax after a thoracoscopic oesophagectomy for oesophageal cancer. With conventional therapy, such as thoracostomy tube, octreotide or fibrogammin, a decrease in the amount of chyle was not achieved. Therefore, we performed lymphangiography and pleurodesis through IVR. The patient appeared to have an aberrant thoracic duct, as revealed by magnetic resonance imaging (MRI); however, after focal pleurodesis, the leak of chyle was diminished, and the patient was discharged 66 days after admission. Conclusions Chylothorax remains a difficult complication. Focal pleurodesis through IVR can be one of the options to treat chylothorax.

scholarly journals Applicability of Magnetic Resonance Imaging in the Assessment of Fetal Urinary Tract Malformations

2019 ◽  
Vol 70 (1) ◽  
pp. 83-95 ◽  
Author(s):  
Tatiana Mendonça Fazecas ◽  
Edward Araujo Júnior ◽  
Heron Werner ◽  
Pedro Daltro ◽  
Alberto Borges Peixoto ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Urinary Tract ◽  
Magnetic Resonance ◽  
Three Dimensional ◽  
Surface Coil ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Urinary Tract Malformations ◽  
Weighted Sequences ◽  
Urinary Tract Anomalies

Objective To assess the applicability of magnetic resonance imaging (MRI) to complement ultrasound in the diagnosis of fetal urinary tract anomalies. Methods This was a retrospective cohort study that included 41 women between 19 weeks and 37 weeks and 6 days of gestation carrying fetuses with malformations of the urinary tract which were initially diagnosed by ultrasound and then referred for MRI. In all cases, the diagnosis was confirmed after birth either through imaging or autopsy. A surface coil was positioned over the abdomen and T2-weighted sequences were obtained in the axial, coronal, and sagittal planes; T1 in at least one plane; and three-dimensional (3-D) TRUFI in fetuses with dilatation of the urinary tract. Results Mean gestational age at the time of MRI examination was 28.21 weeks. The rapid T2 sequences allowed all the anomalies of the fetal urinary tract to be assessed, whereas 3-D TRUFI sequencing proved very useful in evaluating anomalies involving dilatation of the urinary tract. The signs of pulmonary hypoplasia characterized by hypointense signal in the T2-weighted sequences were identified in 13 of the 41 fetuses. Conclusion MRI confirmed and added information to the ultrasound regarding fetal urinary tract anomalies, as well as information related to the other associated malformations, their progress in the prenatal period, and possible postnatal prognosis.

Multi-functional NaErF4:Yb nanorods: enhanced red upconversion emission, in vitro cell, in vivo X-ray, and T2-weighted magnetic resonance imaging

Nanoscale ◽  
2014 ◽  
Vol 6 (5) ◽  
pp. 2855-2860 ◽  
Author(s):  
Haibo Wang ◽  
Wei Lu ◽  
Tianmei Zeng ◽  
Zhigao Yi ◽  
Ling Rao ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Upconversion Emission ◽  
Resonance Imaging ◽  
X Ray ◽  
Weighted Magnetic Resonance Imaging ◽  
New Type ◽  
First Time

A new type of multi-functional NaErF4 nanoprobe with enhanced red upconversion emission was developed and used for in vitro cell, in vivo X-ray and T2-weighted magnetic resonance imaging for the first time.

scholarly journals Dandy–Walker syndrome associated with syringomyelia in an adult: a case report and literature review

2019 ◽  
Vol 47 (4) ◽  
pp. 1771-1777
Author(s):  
Nan Zhang ◽  
Zhenyu Qi ◽  
Xuewen Zhang ◽  
Fangping Zhong ◽  
Hui Yao ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Endoscopic Third Ventriculostomy ◽  
Rare Condition ◽  
Third Ventriculostomy ◽  
Resonance Imaging ◽  
Adult Case ◽  
History Of ◽  
Memory Deterioration

Dandy–Walker syndrome associated with syringomyelia is a rare condition, with few reports of adult cases. We describe an adult case of Dandy–Walker syndrome with concomitant syringomyelia. A 33-year-old man presented with a 3-month history of walking instability, numbness in the hands, memory deterioration, and urinary incontinence. A physical examination showed a positive Romberg sign. Brain computed tomography and magnetic resonance imaging showed hydrocephalus, a cyst in the posterior fossa, absence of the cerebellar vermis, hypoplasia of the corpus callosum and cerebella, and syringomyelia. All of these symptoms were consistent with the diagnosis of Dandy–Walker syndrome. Surgery involving arachnoid adhesiolysis and endoscopic third ventriculostomy was performed. At the 6-month follow-up, the symptoms were completely relieved. Magnetic resonance imaging showed that syringomyelia was greatly reduced and the hydrocephalus remained unchanged. Dandy–Walker syndrome with concomitant syringomyelia in adults is exceedingly rare. Early diagnosis and appropriate surgical treatment of this condition should be highlighted. Combined arachnoid adhesiolysis and endoscopic third ventriculostomy may be an effective approach.

scholarly journals Diagnosis and management of congenital absence of pericardium: a case report

2019 ◽  
Vol 3 (4) ◽  
pp. 1-5
Author(s):  
Melissa Bouchard ◽  
A Hoschtitzky ◽  
M Gatzoulis
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Cardiac Magnetic Resonance Imaging ◽  
Rare Condition ◽  
Symptomatic Patient ◽  
Resonance Imaging ◽  
Asymptomatic Patients ◽  
Chest Pains

Abstract Background Absence of the pericardium is a rare congenital defect with an approximate incidence of <1/10 000. We review a case of complete pericardial agenesis in a symptomatic patient with gross cardiac mobility, for which pericardial reconstruction was undertaken successfully. Case summary A 24-year-old otherwise fit and well patient, with debilitating exertional chest pain was found to have complete pericardial agenesis on the left side and on the diaphragmatic surface. There was gross cardiac mobility demonstrated on cardiac magnetic resonance imaging. His pericardium was reconstructed surgically using Gore-tex® patches. There were no complications, and the patient was discharged 8 days later. Three months later at follow-up, the patient required no analgesia and has had complete resolution of his chest pains. Discussion Congenital hemi-pericardial agenesis is a very rare condition which often remains undetected due to its asymptomatic nature. It is important to consider this as a differential diagnosis of exertional chest pains. Cardiac magnetic resonance imaging remains the investigation of gold standard. There is no consensus on whether surgical intervention in symptomatic or asymptomatic patients has any prognostic value. However, we have demonstrated that by reconstructing the pericardium in a highly symptomatic patient, there has been a resolution in size of a previously dilated right ventricle and most importantly an improvement in quality of life.

scholarly journals Use of Magnetic Resonance Imaging in Evaluating Fetal Brain and Abdomen Malformations during Pregnancy

Medicina ◽  
2019 ◽  
Vol 55 (2) ◽  
pp. 55 ◽  
Author(s):  
Nomeda Valevičienė ◽  
Guoda Varytė ◽  
Jolita Zakarevičienė ◽  
Eglė Kontrimavičiūtė ◽  
Diana Ramašauskaitė ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Fetal Brain ◽  
Fetal Mri ◽  
University Hospital ◽  
Resonance Imaging ◽  
Internal Organs ◽  
Intravenous Contrast ◽  
Vilnius University ◽  
Magnetic Resonance Imaging Mri

Magnetic resonance imaging (MRI) is used as a clarifying technique after a high-resolution ultrasound examination during pregnancy. Combining ultrasound with MRI, additional diagnostic information is obtained or ultrasound diagnosis is frequently corrected. High spatial resolution provides accurate radiological imaging of internal organs and widens possibilities for detecting perinatal development disorders. The safety of MRI and the use of intravenous contrast agent gadolinium are discussed in this article. There is no currently available evidence that MRI is harmful to the fetus, although not enough research has been carried out to prove enduring safety. MRI should be performed when the benefit outweighs the potential side effects. The narrative review includes several clinical cases of fetal MRI performed in Vilnius University Hospital Santaros Clinics.

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