Cross-Sectional Imaging of Renal Cyst Infection

2017 ◽  
pp. 121-126
Author(s):  
Massimo Tonolini
Keyword(s):  
Renal Cyst ◽  
Cross Sectional ◽  
Cyst Infection ◽  
Cross Sectional Imaging ◽  
Sectional Imaging ◽  
Renal Cyst Infection

scholarly journals Proteus empyema as a rare complication from an infected renal cyst, a case report

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Kranthikiran Earasi ◽  
Caitlin Welch ◽  
Adam Zelickson ◽  
Clinton Westover ◽  
Chintan Ramani ◽  
...  
Keyword(s):  
Proteus Mirabilis ◽  
Chest Tube ◽  
Renal Cyst ◽  
Primary Source ◽  
Pleural Space ◽  
Tube Placement ◽  
Upper Respiratory Tract ◽  
Cross Sectional ◽  
Cross Sectional Imaging ◽  
Sectional Imaging

Abstract Background The most commonly isolated organisms in a parapneumonic effusion include S. pneumoniae, H. influenzae, and S. aureus. If unusual organisms are isolated from the pleural space, further investigation is warranted to locate the primary source. We present a patient with an infected chronic renal cyst found to have an empyema secondary to Proteus mirabilis to highlight the importance of further diagnostic workup when encountering unusual organisms in the pleural space. Case presentation A 40-year-old African-American female, with a past medical history of asthma and sickle cell trait, presented with 5 weeks of upper respiratory tract symptoms and chest pain. A computed tomography angiogram (CTA) of the chest was negative for a pulmonary embolism but revealed a loculated left sided pleural effusion with associated left-lower lobe consolidation. She was started on empiric antibiotics, and a chest tube was inserted with drainage of frank pus. Fluid gram stain was positive for gram negative rods. Intrapleural fibrinolytics were administered for 72 h given the presence of loculations. With no improvement following fibrinolytics, she was taken to the operating room for large bore chest tube placement and left visceral pleura decortication. Pleural fluid cultures speciated to Proteus mirabilis, so further cross-sectional imaging of her abdomen/pelvis was pursued to evaluate for a primary source. A complex cystic lesion in the upper pole of the left kidney that communicated with the ipsilateral diaphragm was identified. Subsequent drainage and culture of the renal cyst was positive for Proteus mirabilis. Given clinical improvement following these interventions she was discharged with an extended course of antibiotics with plans for repeat imaging following completion of treatment. Conclusions While cases of Proteus mirabilis empyema have previously been reported as a consequence of conditions such as pyelonephritis, we present, to our knowledge, the first case of a Proteus mirabilis empyema as a consequence of an infected renal cyst communicating with the pleural space. This study highlights that further evaluation with cross-sectional imaging is warranted when unusual organisms are found in the pleural space. Anatomic abnormalities that become apparent on imaging may help elucidate the source of infection.

scholarly journals Using Contrast-Enhanced Ultrasound in Addition to Cross-Sectional Imaging for Indeterminate Renal Cysts May Lead to Overclassification in Bosniak III Category: A Case-Control Study

2021 ◽  
pp. 1-6
Author(s):  
François Audenet ◽  
Jordan Sapetti ◽  
Christophe Delavaud ◽  
Virginie Verkarre ◽  
Jean-Michel Correas ◽  
...  
Keyword(s):  
Lower Risk ◽  
Renal Cyst ◽  
Renal Cysts ◽  
Contrast Enhanced Ultrasound ◽  
Pathological Findings ◽  
Cross Sectional ◽  
Contrast Enhanced ◽  
Risk Of Malignancy ◽  
Cross Sectional Imaging ◽  
Sectional Imaging

<b><i>Introduction:</i></b> Indeterminate renal cysts may require several imaging modalities before clinical decision. The aim of this study was to investigate the effect of the imaging modality used to characterize indeterminate renal cysts on the pathological findings after surgical resection. <b><i>Methods:</i></b> From our institutional database, we identified all patients surgically treated for Bosniak III renal masses between January 2008 and January 2018. All complex renal cysts were characterized with a combination of computed tomography (CT) and/or magnetic resonance imaging (MRI), and/or contrast-enhanced ultrasound (CEUS) and discussed during a multidisciplinary tumor board. Potential association between clinical/radiological characteristics and the pathological findings were investigated, using univariate and multivariate analyses. <b><i>Results:</i></b> Of the 52 renal cystic lesions surgically removed, with a preoperative diagnosis of Bosniak III renal cyst, 19 (37%) were malignant and 33 (63%) were benign. The proportion of malignant lesions decreased from 47% when the renal cyst was characterized with cross-sectional imaging (CT and/or MRI) to 17% when the diagnosis required CEUS in addition to cross-sectional imaging. In multivariate analysis, prior history of renal cell carcinoma was associated with a higher risk of malignancy (<i>p</i> = 0.016) and diagnosis made with CEUS was associated with a lower risk of malignancy (<i>p</i> = 0.040). <b><i>Conclusion:</i></b> We found that using CEUS in addition to cross-sectional imaging to characterize indeterminate renal cysts tends to redefine Bosniak III as lesions with a lower risk of malignancy and can lead to overclassification.

State-of-the-art aortic imaging: Part II - applications in transcatheter aortic valve replacement and endovascular aortic aneurysm repair

VASA ◽  
2014 ◽  
Vol 43 (1) ◽  
pp. 6-26 ◽  
Author(s):  
Fabian Rengier ◽  
Philipp Geisbüsch ◽  
Paul Schoenhagen ◽  
Matthias Müller-Eschner ◽  
Rolf Vosshenrich ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Transcatheter Aortic Valve Replacement ◽  
Surgical Repair ◽  
Imaging Modality ◽  
Open Surgical Repair ◽  
Cross Sectional ◽  
Transcatheter Aortic Valve ◽  
Cross Sectional Imaging ◽  
Sectional Imaging

Transcatheter aortic valve replacement (TAVR) as well as thoracic and abdominal endovascular aortic repair (TEVAR and EVAR) rely on accurate pre- and postprocedural imaging. This review article discusses the application of imaging, including preprocedural assessment and measurements as well as postprocedural imaging of complications. Furthermore, the exciting perspective of computational fluid dynamics (CFD) based on cross-sectional imaging is presented. TAVR is a minimally invasive alternative for treatment of aortic valve stenosis in patients with high age and multiple comorbidities who cannot undergo traditional open surgical repair. Given the lack of direct visualization during the procedure, pre- and peri-procedural imaging forms an essential part of the intervention. Computed tomography angiography (CTA) is the imaging modality of choice for preprocedural planning. Routine postprocedural follow-up is performed by echocardiography to confirm treatment success and detect complications. EVAR and TEVAR are minimally invasive alternatives to open surgical repair of aortic pathologies. CTA constitutes the preferred imaging modality for both preoperative planning and postoperative follow-up including detection of endoleaks. Magnetic resonance imaging is an excellent alternative to CT for postoperative follow-up, and is especially beneficial for younger patients given the lack of radiation. Ultrasound is applied in screening and postoperative follow-up of abdominal aortic aneurysms, but cross-sectional imaging is required once abnormalities are detected. Contrast-enhanced ultrasound may be as sensitive as CTA in detecting endoleaks.

The role of pre-biopsy mpMRI in lymph node staging for prostate cancer

2021 ◽  
pp. 039156032110168
Author(s):  
Nassib Abou Heidar ◽  
Robert El-Doueihi ◽  
Ali Merhe ◽  
Paul Ramia ◽  
Gerges Bustros ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Lymph Node ◽  
High Risk ◽  
Gleason Score ◽  
Gold Standard ◽  
Cross Sectional ◽  
Significant Difference ◽  
Cross Sectional Imaging ◽  
Sectional Imaging ◽  
Kappa Agreement

Introduction: Prostate cancer (PCa) staging is an integral part in the management of prostate cancer. The gold standard for diagnosing lymph node invasion is a surgical lymphadenectomy, with no superior imaging modality available at the clinician’s disposal. Our aim in this study is to identify if a pre-biopsy multiparametric MRI (mpMRI) can provide enough information about pelvic lymph nodes in intermediate and high risk PCa patients, and whether it can substitute further cross sectional imaging (CSI) modalities of the abdomen and pelvis in these risk categories. Methods: Patients with intermediate and high risk prostate cancer were collected between January 2015 and June 2019, while excluding patients who did not undergo a pre-biopsy mpMRI or a CSI. Date regarding biopsy result, PSA, MRI results, CSI imaging results were collected. Using Statistical Package for the Social Sciences (SPSS) version 24.0, statistical analysis was conducted using the Cohen’s Kappa agreement for comparison of mpMRI with CSI. McNemar’s test and receiver operator curve (ROC) curve were used for comparison of sensitivity of both tests when comparing to the gold standard of lymphadenectomy. Results: A total of 143 patients fit the inclusion criteria. We further stratified our patients into according to PSA level and Gleason score. Overall, agreement between mpMRI and all CSI was 0.857. When stratifying patients based on Gleason score and PSA, the higher the grade or PSA, the higher agreement between mpMRI and CSI. The sensitivity of mpMRI (73.7%) is similar to CSI (68.4%). When comparing CSI sensitivity to that of mpMRI, no significant difference was present by utilizing the McNemar test and very similar receiver operating characteristic curve. Conclusion: A pre-biopsy mpMRI can potentially substitute further cross sectional imaging in our cohort of patients. However, larger prospective studies are needed to confirm our findings.

scholarly journals Intraprocedural guidance for recanalization of post-thrombotic venous lesions using live overlay of center lines from pre-operative cross-sectional imaging: a preliminary experience

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Sri Hari Sundararajan ◽  
Raphael Doustaly ◽  
Gregoire Avignon ◽  
David C. Madoff ◽  
Ronald S. Winokur
Keyword(s):  
Cross Sectional ◽  
Cross Sectional Imaging ◽  
Sectional Imaging
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