scholarly journals CT findings of congenital neonatal pyriform aperture stenosis

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Halimah Abu Bakar Sidek ◽  
Yong Guang Teh ◽  
Anithaa Tangaperumal ◽  
Faizah Mohd Zaki ◽  
Thean Yean Kew

ABSTRACT Congenital neonatal pyriform aperture stenosis (CNPAS) is a rare but potentially lethal condition that causes respiratory distress. The characteristic narrowing of the pyriform aperture along with other associated craniofacial dysmorphism is diagnosed using cross-sectional imaging such as computed tomography (CT) and magnetic resonance imaging. CT scan is the imaging of choice for confirming and characterizing CNPAS. Infants are obligate nasal breathers in the first 5 months of life. Hence, a high degree of clinical suspicion, prompt imaging diagnosis and adequate respiratory support is critical to help reduce the morbidity of this condition.

1996 ◽  
Vol 86 (3) ◽  
pp. 123-125 ◽  
Author(s):  
PM Logan ◽  
DG Connell ◽  
DL Janzen

The authors presented the computed tomography and magnetic resonance imaging appearances of a painful os cuboideum secundarium. To the authors' knowledge, this is the first report of the cross-sectional imaging appearance of this condition, and serves to underline the utility of computed tomography and magnetic resonance imaging in the investigation of foot pain.


2020 ◽  
Vol 38 (02/03) ◽  
pp. 119-128 ◽  
Author(s):  
Aileen O'Shea ◽  
Gabrielle Figueiredo ◽  
Susanna I. Lee

AbstractUterine adenomyosis can be diagnosed on ultrasonography (US) and magnetic resonance imaging (MRI) with a high degree of accuracy. Adenomyosis is a myometrial process that can appear as diffuse or focal on imaging. Diffuse adenomyosis typically causes uterine enlargement, while focal adenomyosis can mimic other myometrial lesions, such as leiomyomas. Imaging features frequently seen on US include a heterogenous thickened myometrium and myometrial cysts. On MRI, widening of the junctional zone, whether focal or diffuse, and the presence of myometrial cysts, either simple or hemorrhagic, support the diagnosis of adenomyosis. Despite these characteristic imaging appearances, there are several gynecologic pathologies which can mimic adenomyosis and it is important to be vigilant of these when interpreting cross-sectional imaging exams. The decision to evaluate patients with US or MRI is contingent on multiple factors, including availability of the necessary technology and expertise for the latter. However, MRI appears to offer greater specificity and positive predictive value for the diagnosis of adenomyosis.


2016 ◽  
Vol 6 ◽  
pp. 33
Author(s):  
Matthew Neill ◽  
Hearns W Charles ◽  
Jonathan S Gross ◽  
Sean Farquharson ◽  
Amy R Deipolyi

Despite progress in noninvasive imaging with computed tomography and magnetic resonance imaging, conventional angiography still contributes to the diagnostic workup of oncologic and other diseases. Arteriography can reveal tumors not evident on cross-sectional imaging, in addition to defining aberrant or unexpected arterial supply to targeted lesions. This additional and potentially unanticipated information can alter management decisions during interventional procedures.


2019 ◽  
Vol 101 (5) ◽  
pp. 325-327 ◽  
Author(s):  
A Shayah ◽  
L Wickstone ◽  
E Kershaw ◽  
F Agada

Introduction Nasopharyngeal carcinoma is a rare neoplasm in the UK. The current gold standard for detection is endoscopic examination under anaesthesia of the nasopharynx with biopsy. Many clinicians are now advocating cross-sectional imaging as the primary investigation. The objective of this study is to evaluate the role of cross-sectional imaging in detecting nasopharyngeal carcinoma and ultimately to avoid unnecessary biopsy. Material and methods This is a retrospective uncontrolled case series review of patients who were investigated for suspected nasopharyngeal carcinoma between 2009 and 2017 at York Teaching Hospital NHS Foundation Trust. At present, any suspected nasopharyngeal carcinoma requires biopsy. Search terms used were ‘endoscopic biopsy of nasopharynx’, ‘endoscopic examination + biopsy nasopharynx’. The main outcome measures are reported histological and radiological features of malignancy. Only patients who had imaging prior to the biopsy were included. Results A total of 144 patients had endoscopic examination under anaesthesia of the nasopharynx with biopsy. Approximately one-third of these patients had cross-sectional imaging before the biopsy. The study revealed that magnetic resonance imaging had 100% sensitivity and 84% specificity; however, the endoscopic examination under anaesthesia and biopsy had only 88% sensitivity. This is due to a negative histological finding despite radiological characteristics of nasopharyngeal carcinoma in some patients. However, the specificity was 100%. Conclusion The study supports magnetic resonance imaging as the primary investigation in patients with suspected nasopharyngeal carcinoma followed by endoscopic examination under anaesthesia and biopsy in cases with suspicious findings on imaging only.


2011 ◽  
Vol 62 (2) ◽  
pp. 125-134
Author(s):  
Najla Fasih ◽  
Ram P. Galwa ◽  
David B. Macdonald ◽  
Margaret A. Fraser-Hill ◽  
Matthew McInnes ◽  
...  

Although peritoneal carcinomatosis is the most common entity involving the peritoneum diffusely, a vast array of unusual diseases may affect the peritoneal surfaces. These entities can be further categorized into infectious, neoplastic, and miscellaneous conditions. Cross-sectional imaging, including computed tomography and magnetic resonance imaging are excellent modalities for further characterization of these unusual diseases. For some of these conditions, imaging-specific diagnosis is achievable. For others, the diagnosis can be favored when clinical and/or cross-sectional imaging features coexist.


2014 ◽  
Vol 65 (1) ◽  
pp. 9-18 ◽  
Author(s):  
Vivek Virmani ◽  
Vineeta Sethi ◽  
Najla Fasih ◽  
John Ryan ◽  
Ania Kielar

This article focuses on the cross-sectional imaging spectrum of abnormalities that affect the abdominal wall, with emphasis on magnetic resonance imaging (MRI). Cross-sectional imaging is valuable for diagnosing and evaluating the extent of abdominal-wall masses. With the increasing use of MRI, it is often possible to reach a diagnosis or narrow the differential diagnosis, thereby guiding effective management. Neoplastic and non-neoplastic pathologies will be illustrated, and the distinctive imaging characteristics of these entities will be highlighted.


2012 ◽  
Vol 4 (3) ◽  
pp. 113-121 ◽  
Author(s):  
Ravi Varma ◽  
Aman Kumar ◽  
Harshal Dhongade

ABSTRACT Cross-sectional imaging is an indispensable tool in the investigation of parapharyngeal space and infratemporal fossa pathologies. Computed tomography and magnetic resonance imaging exquisitely display the complex anatomy of this region and provides accurate spatial localization of pathology, differential diagnosis and vital information for treatment planning. How to cite this article Jain S, Kumar A, Dhongade H, Varma R. Imaging of Parapharyngeal Space and Infratemporal Fossa. Int J Otorhinolaryngol Clin 2012;4(3):113-121.


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