Mayo Clinic PathWays: What's the diagnosis?

This week's case study reviews slides from a 67-year-old woman who presented with multiple episodes of blood in her urine. Urine cytology was consistent with malignancy, and a follow-up CT urogram revealed lesions. Can you make the diagnosis? View the case and make your diagnosis. Learn more about Mayo Clinic PathWays.
Source: News from Mayo Clinic - Category: Databases & Libraries Source Type: news

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ConclusionsCT-based radiomics prediction model can evaluate muscle invasiveness of bladder cancer before surgery with a good diagnostic performance.Key Points•CT-based radiomics model can evaluate muscle invasive status in bladder cancer.•The radiomics model shows good diagnostic performance to differentiate muscle-invasive bladder cancer from non-muscle-invasive bladder cancer.•This preoperative CT-based prediction method might complement MR evaluation of bladder cancer and supplement biopsy.
Source: European Radiology - Category: Radiology Source Type: research
AbstractThe goal of functional renal imaging is to identify and quantitate irreversible renal damage and nephron loss, as well as potentially reversible hemodynamic changes. MR urography has evolved into a comprehensive evaluation of the urinary tract that combines anatomical imaging with functional evaluation in a single test without ionizing radiation. Quantitative functional MR imaging is based on dynamic contrast-enhanced MR acquisitions that provide progressive, visible enhancement of the renal parenchyma and urinary tract. The signal changes related to perfusion, concentration and excretion of the contrast agent can ...
Source: Pediatric Radiology - Category: Radiology Source Type: research
Conclusion: Postoperative function remained stable in both groups. More number of patients achieved unobstructed drainage by 3 mo postoperative after reduction pyeloplasty but drainage patterns were mostly similar between reduction and nonreduction of pelvis group in late follow-up.
Source: Journal of Indian Association of Pediatric Surgeons - Category: Surgery Authors: Source Type: research
Br J Radiol. 2022 Jan 7:20210949. doi: 10.1259/bjr.20210949. Online ahead of print.ABSTRACTExcretory urography (EU) had been the most frequently performed imaging modality for uroradiology in the past. With the advances in ultrasonography, and development of cross-sectional urography with CT and MRI, EU is now seldom performed. Consequently, there has been a decline of expertise in this technique. However, EU has multiple advantages such as dynamic nature, easy availability, low cost and radiation burden. These render it potentially very valuable in specific indications like congenital anomalies, urothelial lesions and uri...
Source: The British Journal of Radiology - Category: Radiology Authors: Source Type: research
CT-Urography combined with 3D printing technology, digital design, construction of individualized PCNL puncture guides, and preliminary analyze their efficacy, safety puncture positioning for PCNL.
Source: BMC Urology - Category: Urology & Nephrology Authors: Tags: Research Source Type: research
Am J Vet Res. 2021 Dec 21:1-10. doi: 10.2460/ajvr.21.03.0041. Online ahead of print.ABSTRACTOBJECTIVE: To assess the usefulness of magnetic resonance urography (MRU) for the visualization of nondilated renal pelvises and ureters in dogs and to compare our findings for MRU versus CT urography (CTU).ANIMALS: 9 healthy Beagles.PROCEDURES: Dogs underwent CTU, static-fluid MRU, and excretory MRU, with ≥ 7 days between procedures. Contrast medium was administered IV during CTU and excretory MRU, whereas urine in the urinary tract was an intrinsic contrast medium for static-fluid MRU. For each procedure, furosemide (1 mg/kg, I...
Source: American Journal of Veterinary Research - Category: Veterinary Research Authors: Source Type: research
Exp Ther Med. 2022 Jan;23(1):65. doi: 10.3892/etm.2021.10988. Epub 2021 Nov 23.ABSTRACTNeurogenic bladder (NGB) is an important complication of urinary tract dysfunction after spinal cord injury (SCI). However, using urodynamics and urography to guide therapy remains invasive and complicated. Therefore, the present study aimed to identify potential noninvasive biomarkers from urinary exosomes that can facilitate diagnosis and guide prognosis of patients with NGB subsequent to SCI. Urinary exosomes were isolated, and their proteome profile was analyzed by mass spectrometry. Transmission electron microscopy and Nanoparticle ...
Source: Experimental and Therapeutic Medicine - Category: General Medicine Authors: Source Type: research
A 64-year-old man was referred because of the right ureteral obstruction. CT urography showed an intraluminal enhancing mass in the right midureter and an enhancing nodule in the bladder wall. FDG PET/CT showed increased FDG uptake of the ureteral mass and an unexpected hypermetabolic lesion in the jejunum. The patient underwent transurethral resection of the bladder tumor, right laparoscopic nephroureterectomy, and partial enterectomy. Inverted urothelial papilloma of the bladder, high-grade urothelial carcinoma of the right ureter, and jejunal adenocarcinoma were confirmed by histopathology. Genetic testing of the jejuna...
Source: Clinical Nuclear Medicine - Category: Nuclear Medicine Tags: Interesting Images Source Type: research
ConclusionThe study data demonstrate a significant difference in the attenuation values of iodine urine in the excretory system between the Iodixanol and Iomeprol group. Iodixanol induced a higher frequency and burden of artefacts, compared to Iomeprol.
Source: Journal of Medical Imaging and Radiation Oncology - Category: Radiology Authors: Tags: Medical Imaging —Original Article Source Type: research
The number of people infected with COVID-19 around the world is steadily increasing. COVID-19 is a new respiratory infection. The causative agent of the disease, a new RNA-containing coronavirus SARS-CoV2, was discovered at the end of 2019.Objective: To assess the functional activity of blood phagocytes in patients with COV19.Objects: patients with cov19 (n = 33); control(n = 36). The diagnosis of COV19 was made on the basis of a positive PCR test (nasal swab) and an ELISA method for the presence of M and G antibodies in the blood serum using Architect SARS-CoV-2 IgGandAdviseDx SARS-CoV-2 IgM test systems (Architect).Metho...
Source: European Respiratory Journal - Category: Respiratory Medicine Authors: Tags: Clinical problems Source Type: research
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