scholarly journals Intramedullary spinal masses: A pictorial essay

2014 ◽  
Vol 18 (1) ◽  
Author(s):  
Abraham Fourie Bezuidenhout ◽  
Jared M. Lipsitz ◽  
Anne-Marie Du Plessis
Keyword(s):  
Differential Diagnosis ◽  
Classification System ◽  
Imaging Features ◽  
Pictorial Essay

This pictorial essay provides a classification system for the most common intramedullaryspinal masses and describes distinguishing imaging features that will aid the radiologist inproviding a relevant differential diagnosis to guide further management.

Inflammatory Pseudotumours in the Abdomen and Pelvis: A Pictorial Essay

2014 ◽  
Vol 65 (1) ◽  
pp. 52-59 ◽  
Author(s):  
Tony Sedlic ◽  
Elena P. Scali ◽  
Wai-Kit Lee ◽  
Sadhna Verma ◽  
Silvia D. Chang
Keyword(s):  
Differential Diagnosis ◽  
Soft Tissue ◽  
Preoperative Diagnosis ◽  
Imaging Features ◽  
Clinical Context ◽  
Inflammatory Pseudotumour ◽  
Pictorial Essay ◽  
Soft Tissue Masses

Inflammatory pseudotumours are uncommonly encountered lesions in the abdomen and pelvis that often present with variable and nonspecific imaging features. They may mimic other more common lesions, including malignancy. Within the appropriate clinical context, inflammatory pseudotumours merit consideration in the differential diagnosis of soft-tissue masses within the abdomen and pelvis. A preoperative diagnosis of inflammatory pseudotumour, established through biopsy, may help to differentiate this benign entity from malignancy. In this article, we reviewed the imaging features of inflammatory pseudotumours of the abdomen and pelvis, including liver, spleen, bowel, retroperitoneum, kidney, bladder, uterus, and adnexa.

scholarly journals Imaging in ischemia of bone – A pictorial essay

2021 ◽  
Vol 9 (2) ◽  
pp. 108-118
Author(s):  
Kakarla S
Keyword(s):  
Bone Marrow ◽  
Differential Diagnosis ◽  
Cortical Bone ◽  
Avascular Necrosis ◽  
Acute Ischemia ◽  
Long Bones ◽  
Imaging Features ◽  
Pictorial Essay ◽  
Small Bones

Ischemia of bone is not uncommon and is not recognized clinically unless it is acute. Ischemia of bone marrow in shafts of long bones goes by the name of infarction and is well recognized. Ischemia of epiphysis, small bones and subarticular ends of bones goes by the name of avascular necrosis and ischemia of cortical bone goes by the name of Osteosclerosis. The imaging features of these three entities are described with differential diagnosis wherever necessary.

A Case of an Extraosseous Pretibial Ganglion Cyst

2019 ◽  
Vol 1 ◽  
pp. 114-116
Author(s):  
Catrin Wigley ◽  
Guy Morris ◽  
Scott Evans ◽  
Rajesh Botchu
Keyword(s):  
Differential Diagnosis ◽  
Ganglion Cyst ◽  
Imaging Features ◽  
Oncology Service ◽  
Orthopedic Oncology

Pretibial lesion can have a plethora of differential diagnosis. We report a case of extraosseous pretibial ganglion cyst which was referred to our orthopedic oncology service and described the imaging features.

scholarly journals Not all that glitters is COVID! Differential diagnosis of FDG-avid interstitial lung disease in low-prevalence regions

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Annalisa Papa ◽  
Chiara Pozzessere ◽  
Francesco Cicone ◽  
Fabiola Rizzuto ◽  
Giuseppe Lucio Cascini
Keyword(s):  
Differential Diagnosis ◽  
Interstitial Lung Diseases ◽  
Routine Activity ◽  
Imaging Features ◽  
Pet Ct ◽  
Oncologic Patients ◽  
The Many ◽  
Fdg Pet Ct ◽  
Low Prevalence ◽  
Similar Imaging

Abstract Coronavirus disease-19 (COVID-19) is only one of the many possible infectious and non-infectious diseases that may occur with similar imaging features in patients undergoing [18F]-fluorodeoxyglucose (18FDG) monitoring, particularly in the most fragile oncologic patients. We briefly summarise some key radiological elements of differential diagnosis of interstitial lung diseases which, in our opinion, could be extremely useful for physicians reporting 18FDG PET/CT scans, not only during the COVID-19 pandemic, but also for their normal routine activity.

scholarly journals Extraosseous Ewing’s Sarcoma: Pictorial Review of Imaging Findings, Differential Diagnosis, and Pathologic Correlation

2021 ◽  
Author(s):  
Alan Alexander ◽  
Kyle Hunter ◽  
Michael Rubin ◽  
Ambarish P. Bhat
Keyword(s):  
Differential Diagnosis ◽  
Ewing’S Sarcoma ◽  
Ewing's Sarcoma ◽  
Multimodality Imaging ◽  
Imaging Features ◽  
Older Children ◽  
Radiologic Findings ◽  
Pictorial Review ◽  
Malignant Mesenchymal Tumor ◽  
Extraosseous Ewing’S Sarcoma

AbstractExtraosseous Ewing’s sarcoma (EES), first described in 1969, is a malignant mesenchymal tumor just like its intraosseous counterpart. Although Ewing’s sarcomas are common bone tumors in young children, EESs are rarer and more commonly found in older children/adults, often carrying a poorer prognosis. We discuss the multimodality imaging features of EES and the differential diagnosis of an aggressive appearing mass in proximity to skeletal structures, with pathologic correlates. This review highlights the need to recognize the variability of radiologic findings in EES such as the presence of hemorrhage, rich vascularity, and cystic or necrotic regions and its imaging similarity to other neoplasms that are closely related pathologically.

scholarly journals Ultrasound imaging of acute scrotum: Pictorial review with etiological correlation

2020 ◽  
pp. 90-109
Author(s):  
Anitha Mandava ◽  
Veeraiah Koppula ◽  
Rohit Yalamanchili ◽  
Dilip Yadav ◽  
Juluri Rakesh
Keyword(s):  
Color Doppler ◽  
Acute Scrotum ◽  
Imaging Features ◽  
First Line ◽  
Surgical Exploration ◽  
Pictorial Review ◽  
Pictorial Essay ◽  
Characteristic Imaging ◽  
Line Imaging ◽  
Urological Emergencies

High resolution ultrasound with color Doppler is the first-line imaging investigation in the evaluation of acute scrotum. It plays a crucial role in distinguishing urological emergencies necessitating immediate surgical exploration from those that can be managed conservatively. Acute scrotal pathologies can involve the scrotal sac or its contents like testis, epididymis and testicular appendages and could range from benign, self-limiting conditions to emergencies. In this pictorial essay, we briefly review the ultrasonographic technique, scrotal anatomy and characteristic imaging features of various pathologies presented as acute scrotum.

scholarly journals Tomographic diagnosis and relevant aspects of otosclerosis

2013 ◽  
Vol 46 (5) ◽  
pp. 307-312 ◽  
Author(s):  
Juliana Oggioni Gaiotti ◽  
Natália Delage Gomes ◽  
Ana Maria Doffémond Costa ◽  
Caroline Laurita Batista Couto Villela ◽  
Wanderval Moreira ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Hearing Loss ◽  
Differential Diagnosis ◽  
Multidetector Computed Tomography ◽  
Surgical Planning ◽  
Otic Capsule ◽  
Metabolic Derangement ◽  
Pictorial Essay ◽  
Temporal Bone Anatomy ◽  
Endochondral Layer

A literature review and pictorial essay were developed to discuss the importance of knowing the main findings and locations of otosclerosis at multidetector computed tomography (MDCT). The authors performed a retrospective review of cases of otosclerosis diagnosed in their institution by means of high resolution multidetector computed tomography. Otosclerosis corresponds to otic capsule dysplasia characterized by metabolic derangement of its endochondral layer. Such condition constitutes a relevant cause of sensorineural hearing loss, affecting about 7% to 10% of the general population. The diagnosis is usually clinical, but imaging methods play a significant role in the anatomical detailing, differential diagnosis, surgical planning and evaluation of postoperative complications. Among such methods, the relevance of MDCT is highlighted. Radiologists should be familiar with the MDCT findings of otosclerosis, as well as with the temporal bone anatomy to assist in the appropriate clinical management of this disease.

scholarly journals Contrast-Enhanced Ultrasound in the Differential Diagnosis of Primary Thyroid Lymphoma and Nodular Hashimoto’s Thyroiditis in a Background of Heterogeneous Parenchyma

2021 ◽  
Vol 10 ◽  
Author(s):  
Lulu Yang ◽  
Haina Zhao ◽  
Yushuang He ◽  
Xianglan Zhu ◽  
Can Yue ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Hashimoto’S Thyroiditis ◽  
Diagnostic Performance ◽  
Roc Curves ◽  
Hashimoto's Thyroiditis ◽  
Imaging Features ◽  
Contrast Enhanced Ultrasound ◽  
Thyroid Lymphoma ◽  
Contrast Enhanced ◽  
Primary Thyroid Lymphoma

ObjectiveTo investigate the diagnostic performance of contrast-enhanced ultrasound (CEUS) in the differentiation of primary thyroid lymphoma (PTL) and nodular Hashimoto’s thyroiditis (NHT) in patients with background of heterogeneous diffuse Hashimoto’s thyroiditis (HT).MethodsSixty HT patients with 64 thyroid nodules (31 PTL and 33 NHT) who had undergone CEUS examination were included in this study. With histopathological results as the reference, we evaluated the imaging features of each nodule on both conventional ultrasonography (US) and CEUS. Quantitative CEUS parameters including peak intensity (PI), time to peak (TTP), and area under the time–intensity curve (AUC) were gathered in the nodule and background parenchyma. The ratio indexes of theses parameters were calculated by the ratio of the lesion and the corresponding thyroid parenchyma. Logistic regression and receiver operating characteristic (ROC) curves analyses of valuable US indicators were further preformed to evaluate the diagnostic capability of CEUS in discrimination of PTL and NHT.ResultsAmong all the observed US imaging features and CEUS parameters, 10 indicators showed significant differences between PTL and NHT (all P < 0.05). All the significant indicators were ranked according to the odds ratios (ORs). Eight of them were CEUS associated including imaging features of enhancement pattern, degree, homogeneity, and quantification parameters of PI, AUC, ratios of PI, AUC, and TTP, while indicators on conventional US, including vascularity and size ranked the last two with ORs less than 3. The five single CEUS parameters showed good diagnostic performance in diagnosis of PTL with areas under ROC curves of 0.72–0.83 and accuracies of 70.3–75.0%. The combination of CEUS imaging features and the ratios of PI, AUC, and TTP demonstrated excellent diagnostic efficiency and achieved area under ROC curve of 0.92, which was significantly higher than any of the five single parameters (all P < 0.05), with a sensitivity of 83.9%, specificity of 87.9%, and accuracy of 85.9%.ConclusionsCEUS is an efficient diagnostic tool in the differential diagnosis of PTL and NHT for patients with diffuse HT. Conjoint analysis of CEUS imaging features and quantification parameters could improve the diagnostic values.

scholarly journals Large Vallecular Masses; Differential Diagnosis and Imaging Features

2018 ◽  
Vol 8 ◽  
pp. 26 ◽  
Author(s):  
Ashim Kumar Lahiri ◽  
Krishna Kiran Somashekar ◽  
Bernd Wittkop ◽  
Christopher Ayshford
Keyword(s):  
Differential Diagnosis ◽  
Wide Spectrum ◽  
Tongue Base ◽  
Low Grade ◽  
Imaging Features ◽  
Disease Entity ◽  
Palatine Tonsils ◽  
Uncommon Disease ◽  
Mass Lesions ◽  
Supraglottic Larynx

Large vallecular masses are an uncommon disease entity which includes a wide spectrum of rare pathologies. These masses may present as purely vallecular in location or appear as an extension from adjacent anatomical sites like tongue base including lingual tonsils, epiglottis, palatine tonsils, epiglottis, and the remainder of supraglottis. Literature review reveals very rare conditions presenting as vallecular mass lesions. The imaging features are generally diagnostic for characterization. However, these masses can exhibit indeterminate appearance at imaging. We present a series of five cases which includes two rare presentations: a case of low-grade cribriform adenocarcinoma of the base of tongue and a vallecular lipoma. The other three cases presented for differential diagnosis including benign vallecular cysts and two cases to show that malignant masses arising from neighboring anatomical sites such as tongue base or supraglottic larynx can exhibit significant vallecular component.

Extra-axial tentorial medulloblastoma: a rare presentation of a common posterior fossa tumour

2021 ◽  
Vol 14 (6) ◽  
pp. e242865
Author(s):  
Somesh Singh ◽  
Amrin Israrahmed ◽  
Vikrant Verma ◽  
Vivek Singh
Keyword(s):  
Differential Diagnosis ◽  
Posterior Fossa ◽  
Fourth Ventricle ◽  
Imaging Features ◽  
Total Excision ◽  
Posterior Fossa Tumour ◽  
Rare Presentation ◽  
Preoperative Workup ◽  
Radiological Features ◽  
Axial Mass

Medulloblastoma is a common paediatric posterior fossa tumour typically presenting as midline intra-axial mass involving the cerebellar vermis and/or roof of fourth ventricle with typical radiological features. These can be extra-axial in extremely rare instances with less than 50 cases reported so far in literature. We present a case of 18-year-old boy presenting with ataxia and headache. MRI showed dural mass (involving the left tentorium cerebellum) with typical imaging features of extra-axial lesion. The patient underwent near total excision of the tumour. Histopathology along with immunohistochemistry revealed the mass to be medulloblastoma. We present this case to highlight rarity of this location for medulloblastoma and the importance of considering this in the differential diagnosis of atypical posterior fossa extra-axial lesions. This can help in performing other relevant preoperative workup similar on the lines of medulloblastoma and planning of relevant management.

Sign in / Sign up

Export Citation Format

Share Document