scholarly journals Imaging Findings in Neonates With Congenital Pyriform Sinus Fistula: A Retrospective Study of 45 Cases

2021 ◽  
Vol 9 ◽  
Author(s):  
Li Li ◽  
Dong-Ji-Hui Zhao ◽  
Tao-Yue Yao ◽  
Yong-Hua Xiang ◽  
Hong Liu ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Pyriform Sinus ◽  
Supplementary Information ◽  
Retropharyngeal Space ◽  
Imaging Features ◽  
Imaging Findings ◽  
Pyriform Sinus Fistula ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

Background: Congenital pyriform sinus fistula (CPSF) is a rare branchial cleft deformity. The characteristics and management of CPSF in neonates are different from those in children or adults, and a comprehensive understanding of the imaging features of neonatal CPSF can facilitate its preoperative diagnosis. Thus, the aim of this study was to summarize the ultrasonography (US) and CT imaging findings of CPSF in neonates.Methods: Forty-five full-term neonates with CPSF, confirmed by pathology after surgical resection from January 2012 to October 2020, were included in this retrospective study. All patients underwent preoperative cervical US and contrast-enhanced CT examinations, and the imaging findings were analyzed.Results: Forty-six cervical cystic masses were found in 45 neonates, including one case with bilateral lesions, three cases with lesions on the right side, and 41 cases on the left side. Both US and CT detected neck abnormality among all cases, while the diagnostic accuracy of US (15/46, 32.6%) was lower than that of CT (42/46, 91.3%). Moreover, CT showed significantly higher detection rates of intralesional air bubbles, involvement of the ipsilateral thyroid, deviation of the airway, and expansion into the mediastinal and retropharyngeal space compared with the US. As the age increased, it was more likely to present some features including the absence of air-containing, thick cyst wall, and poorly defined border (ρ <0.05).Conclusion: CPSF in the neonates showed distinctive imaging findings on contrast-enhanced CT scan, which provides important supplementary information for the diagnosis of CPSF after the initial US examination.

A comparison of liver MRI and contrast enhanced CT as standard workup before treatment for rectal cancer in usual care – a Retrospective Study

2021 ◽  
Vol 17 ◽  
Author(s):  
Jennifer Park ◽  
Mattias Block ◽  
David Bock ◽  
Peter Kälebo ◽  
Peter Nilsson ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
Retrospective Study ◽  
Usual Care ◽  
Prospective Trial ◽  
Cancer Metastases ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Pre Treatment ◽  
Magnetic Resonance Imaging Mri

Background: The liver is the most common site for rectal cancer metastases. Recommended standard pre-treatment workup has involved computed tomography (CT) for abdominal metastases. However, few hospitals have replaced this with magnetic resonance imaging (MRI). Introduction: The aim of this study was to compare MRI with CT as an index examination of the liver in the pre-treatment workup in usual care. The primary endpoint was the need for supplementary liver investigations. Result: A total of 320 patients were included, and 293 were available for analysis. Some 175 and 118 patients had undergone CT and MRI, respectively, as their index pretreatment liver examination. Thirty-four (19.4%) in the CT group and 6 (5.1%) patients in the MRI group underwent supplementary liver investigation due to inconclusive index examination (RR 3.82, 95% CI: 1.66;8.81, p=0.0017). Median time (q1;q3) from index examination to start of treatment was 50 (36;68) days in the CT group and 34 (27;45) days in the MRI group. Conclusion: This retrospective study of two modalities within usual care found that MRI of the liver as index radiological workup before treatment for rectal cancer was associated with fewer supplementary liver investigations and a shorter time to start treatment. Based on these findings, a prospective trial should be undertaken before implementing MRI as a standard.

Pediatric inflammatory pseudotumor of the stomach: contrast-enhanced CT and MR imaging findings.

1996 ◽  
Vol 167 (4) ◽  
pp. 919-920 ◽  
Author(s):  
E Taratuta ◽  
G Krinsky ◽  
E Genega ◽  
K Roche ◽  
N Geneisier
Keyword(s):  
Mr Imaging ◽  
Inflammatory Pseudotumor ◽  
Imaging Findings ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

scholarly journals Evaluation of genitourinary fistulas in pelvic malignancies with etiopathologic correlation: role of cross sectional imaging in detection and management

2020 ◽  
Vol 93 (1111) ◽  
pp. 20200049 ◽  
Author(s):  
Anitha Mandava ◽  
Veeraiah Koppula ◽  
Gaurav Sharma ◽  
Meghana Kandati ◽  
K.V.V.N. Raju ◽  
...  
Keyword(s):  
Imaging Findings ◽  
Cross Sectional ◽  
Pelvic Malignancies ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Cross Sectional Imaging ◽  
Sectional Imaging ◽  
Ct And Mri

Objective: Genitourinary fistulas in pelvic malignancies are abnormal communications occurring due to either locally advanced tumours invading the surrounding organs or post-therapeutic complications of malignancies. In this article we review and describe the role of cross-sectional imaging findings in the management of genitourinary fistulas in pelvic malignancies. Methods: A retrospective study, for the period January 2012 to December 2018, was undertaken in patients with pelvic malignancies having genitourinary fistulas. The cross-sectional (CT and MRI) imaging findings in various types of fistulas were reviewed and correlated with the primary malignancy and the underlying etiopathology. Results: Genitourinary fistulas were observed in 71 patients (6 males, 65 females). 11 types of fistulas were identified in carcinomas of cervix, rectum, ovary, urinary bladder, sigmoid colon, vault, endometrium and prostate. The commonest were rectovaginal and vesicovaginal fistulas. 13 patients had multiple fistulas. The sensitivity, specificity, positive and negative predictive values of CT and MRI are 98%, 100%, 66%, 98% and 95%, 25%, 88% and 50% respectively. Contrast-enhanced CT with oral and rectal contrast is more sensitive and specific than MRI in the evaluation of genitourinary fistulas. Conclusion: Imaging findings significantly influence the management and outcome of genitourinary fistulas in pelvic malignancies. Contrast-enhanced CT is the imaging modality of choice in the evaluation of pelvic fistulas associated with malignancies and MRI is complimentary to it. Advances in knowledge: To our knowledge, this study is the first of its kind wherein the mean duration of occurrence of fistulas in pelvic malignancies is correlated with the underlying etiopathology.

scholarly journals Comparison of ultrasound and Contrast- enhanced computed tomography in clinically diagnosed cases of acute pancreatitis

2021 ◽  
Vol 8 (1) ◽  
pp. 51-57
Author(s):  
Pooja Jaiswal ◽  
Shreejana Shrestha ◽  
Yogita Dwa
Keyword(s):  
Acute Pancreatitis ◽  
Diagnostic Accuracy ◽  
Standard Technique ◽  
Dynamic Imaging ◽  
Radiology Department ◽  
Imaging Features ◽  
Imaging Findings ◽  
Imaging Characteristics ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced

Introduction: Acute pancreatitis (AP) is an acute, mainly diffuse, inflammatory process of the pancreas with dynamic imaging characteristics and a multitude of possible complications. Imaging plays an important role in the diagnosis of AP. As most of the AP cases are gallstone-related, ultrasound (USG) is the most common initial radiologic investigation of choice. Contrast-enhanced CT (CECT) is the standard technique for overall assessment of AP and its complications. This study aims to compare diagnostic accuracy of imaging findings of USG with CECT. Method: This was a retrospective review of imaging findings of USG and CECT in clinically diagnosed cases of AP who visited Radiology Department of Patan Hospital, Patan Academy of Health Sciences, Kathmandu, Nepal during 2015 to 2019 and had undergone USG and CECT. The diagnostic accuracy of USG and CECT imaging findings were compared. Study was approved ethically. Result: Among 210 clinically diagnosed cases of acute pancreatitis, USG accurately diagnosed 97(46.2%), CECT 180(85.7%). Both the modalities detected cholelithiasis in 17% of the cases. Out of 97 cases, 85 showed focal or diffuse enlargement of pancreas on USG. Conclusion: The CECT showed higher diagnostic accuracy for acute pancreatitis as compared to ultrasound, 85.7% vs. 46.2%. The overall visualization of the imaging features of AP and its complications was better by CECT than by USG.

scholarly journals Imaging Features of Multiple Myeloma Extramedullary Lesions in the Liver with 18F-FDG PET/CT, Contrast-Enhanced CT and MRI

Diagnostics ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 179 ◽  
Author(s):  
Dimitris Papamichail ◽  
Robert Hog ◽  
Hartmut Goldschmidt ◽  
Antonia Dimitrakopoulou-Strauss
Keyword(s):  
Multiple Myeloma ◽  
Liver Parenchyma ◽  
Imaging Features ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Pet Ct ◽  
Enhanced Ct ◽  
18F Fdg ◽  
Fdg Pet Ct ◽  
Ct And Mri

Ηepatic involvement in multiple myeloma is not common; nevertheless, it is associated with poorer outcome. Heterogeneous features have been described in few published reports so far. We present the imaging findings of PET/CT in comparison to those of MRI for two multiple myeloma (MM) patients, one with a liver lesion suspicious for myeloma metastasis on PET and one with multiple liver lesions suspicious for myeloma metastases on MRΙ. The subsequent ultrasound-guided needle biopsies confirmed the extramedullary spread of the disease in both patients. The first case exhibited a match in both functional imaging modalities (PET and MRI) but a mismatch of intense metabolic activity on 18F-fluorodeoxyglucose (18F-FDG) PET/CT and iso-attenuating liver parenchyma on contrast-enhanced CT. The second case showed a mismatch of signal elevation persistence on diffusion-weighted imaging (DWI) and physiologic 18F-FDG distribution in the liver parenchyma. These cases present different imaging features in MM lesions of the liver using PET/CT and MRI, reflecting the high disease heterogeneity in patients with MM and demonstrating that the use of both PET/CT and MRI may offer complementary information.

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