Radiological Evaluation of Focal Pancreatic Lesions

2014 ◽  
Vol 33 (1) ◽  
pp. 91-98 ◽  
Author(s):  
Daniel Putzer ◽  
Werner Jaschke
Keyword(s):  
Pancreatic Cancer ◽  
Clinical Signs ◽  
Anatomical Variations ◽  
Pancreatic Disease ◽  
Imaging Features ◽  
Cross Sectional ◽  
Positron Emission ◽  
Pancreatic Masses ◽  
Magnetic Resonance Imaging Mri ◽  
Multiphase Ct

The early and accurate characterization of pancreatic masses remains a challenge in diagnostic radiology, while the continuously evolving diagnostic possibilities give rise to an ever-increasing number of incidentally found pancreatic masses. This article discusses the relevance and role of ultrasound, endoscopic ultrasound, computed tomography (CT), magnetic resonance imaging (MRI) and positron emission tomography (PET) in the diagnosis of pancreatic lesions. Specific protocols such as MR cholangiopancreatography and multiphase CT allow for a close characterization. While CT and MRI deliver information to further evaluate pancreatic disease, PET/CT has shown potential for staging purposes and in the clinical follow-up of pancreatic cancer patients. Common differential diagnoses regarding pancreatic cancer are discussed, and typical imaging features of anatomical variations, cystic lesions and pancreatitis are illustrated, together with clinical signs of pancreatic disease. The use of cross-sectional imaging in correlation with clinical features allows for an accurate and early detection of pancreatic masses and assists in differentiating benign from malignant disease.

scholarly journals Imaging features of skeletal muscle lymphoma: a case report and literature review

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Shuxi Gao ◽  
Hong Shu ◽  
Hua Yang
Keyword(s):  
Skeletal Muscle ◽  
Lower Extremity ◽  
B Cell Lymphoma ◽  
Imaging Features ◽  
Left Lower Extremity ◽  
Non Hodgkin Lymphoma ◽  
Guided Biopsy ◽  
Mri Features ◽  
Positron Emission ◽  
Magnetic Resonance Imaging Mri

Abstract Background Diffuse large B cell lymphoma (DLBCL) is the most common type of non-Hodgkin lymphoma (NHL), occurring predominantly in older people. Skeletal muscle lymphoma is a rare form of DLBCL, most frequently affecting the thigh, upper extremities, calf, and pelvis. Case presentation We report a case of skeletal muscle DLBCL that was diagnosed using ultrasound (US)-guided biopsy. A 70-year-old man presented with progressive swelling and pain in the left lower extremity and an elevated erythrocyte sedimentation rate (ESR) and serum C-reactive protein (CRP), ferritin, and CA125 levels. US, magnetic resonance imaging (MRI), and computed tomography (CT) showed diffuse lesions in several muscles of the left lower extremity. Positron emission tomography/CT (PET/CT) showed FDG-uptake in the affected muscles. The patient was treated with chemotherapy and achieved a good response. A systematic review of the literature published between 1992 and 2019 was conducted to investigate the role of imaging, including imaging-guided biopsy, in the diagnosis of skeletal muscle lymphoma. Conclusions Skeletal muscle lymphoma is rare. US and MRI features include enlargement of muscular structures, with preservation of the architecture of the tissue and surrounding anatomical structures. Definitive diagnosis relies on histological and immunohistological analysis of a sample obtained through imaging-guided biopsy.

scholarly journals Adult pancreatoblastoma: a case report

2021 ◽  
Vol 49 (8) ◽  
pp. 030006052110395
Author(s):  
Jianchun Li ◽  
Chengzhong Peng ◽  
Xiaoming Fan ◽  
Ligang Wang ◽  
Jing Wang
Keyword(s):  
Preoperative Diagnosis ◽  
Paediatric Population ◽  
Emission Tomography ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Ultrasound Contrast ◽  
Positron Emission ◽  
Contrast Enhanced ◽  
Pancreatic Masses ◽  
Contrast Enhanced Ultrasonography

Pancreatoblastoma (PB) is a rare epithelial malignancy usually occurring in the paediatric population. Adult PB is rare, and its imaging findings are similar to those of other tumours, making preoperative diagnosis a considerable challenge. We report correlative ultrasound, contrast-enhanced ultrasonography, contrast-enhanced magnetic resonance imaging, and positron emission tomography-computed tomography findings in a 60-year-old woman with PB. PB often presents with uncommon imaging features and should be considered in the differential diagnosis of pancreatic masses. It is important for clinicians to be aware of these differences to provide effective treatment.

Association of Cauda Equina Compression on Magnetic Resonance Images and Clinical Signs in Dogs With Degenerative Lumbosacral Stenosis

2002 ◽  
Vol 38 (6) ◽  
pp. 555-562 ◽  
Author(s):  
Philipp D. Mayhew ◽  
Amy S. Kapatkin ◽  
Jeffrey A. Wortman ◽  
Charles H. Vite
Keyword(s):  
Magnetic Resonance ◽  
Cauda Equina ◽  
Clinical Signs ◽  
Magnetic Resonance Images ◽  
Lumbosacral Spine ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
Cauda Equina Compression ◽  
Magnetic Resonance Imaging Mri ◽  
Time Of Presentation

Magnetic resonance imaging (MRI) was used to examine the lumbosacral spine of 27 dogs with degenerative lumbosacral stenosis. Four normal dogs were also similarly imaged. Compression of the soft-tissue structures within the vertebral canal at the lumbosacral space was assessed in two ways: by measuring dorsoventral diameter on T1-weighted sagittal images and cross-sectional area on transverse images. The severity of the clinical signs was compared to the severity of cauda equina compression. No significant correlation was found. It is concluded that degree of compression as determined by MRI at time of presentation is independent of disease severity.

Imaging Diagnosis of Adenomyosis

2020 ◽  
Vol 38 (02/03) ◽  
pp. 119-128 ◽  
Author(s):  
Aileen O'Shea ◽  
Gabrielle Figueiredo ◽  
Susanna I. Lee
Keyword(s):  
Imaging Features ◽  
Resonance Imaging ◽  
Imaging Diagnosis ◽  
Junctional Zone ◽  
Cross Sectional ◽  
Characteristic Imaging ◽  
Cross Sectional Imaging ◽  
Uterine Adenomyosis ◽  
Magnetic Resonance Imaging Mri ◽  
High Degree

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.

scholarly journals Medical Imaging in the Diagnosis of Schistosomiasis: A Review

Pathogens ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1058
Author(s):  
Andrea Cimini ◽  
Maria Ricci ◽  
Paola Elda Gigliotti ◽  
Luca Pugliese ◽  
Agostino Chiaravalloti ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Diagnostic Imaging ◽  
Imaging Techniques ◽  
Laboratory Data ◽  
Daily Practice ◽  
Imaging Features ◽  
X Rays ◽  
Positron Emission ◽  
Diagnostic Imaging Techniques ◽  
Magnetic Resonance Imaging Mri

Schistosomiasis is one of the most important parasitic diseases and it is endemic in tropical and subtropical areas. Clinical and laboratory data are fundamental for the diagnosis of schistosomiasis, but diagnostic imaging techniques such as x-rays, ultrasound (US), computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography/computed tomography (PET/CT) may be helpful in the evaluation of disease severity and complications. In this context, the aim of this review is to explore the actual role of diagnostic imaging in the diagnosis of schistosomiasis, underlining advantages and drawbacks providing information about the utilization of diagnostic imaging techniques in this context. Furthermore, we aim to provide a useful guide regarding imaging features of schistosomiasis for radiology and nuclear medicine physicians of non-endemic countries: in fact, in the last years non-endemic countries have experienced important flows of migrants from endemic areas, therefore it is not uncommon to face cases of this disease in daily practice.

scholarly journals Imaging in diagnostics and management of extramedullary lesions in a patient with multiple myeloma

2019 ◽  
Vol 1 (1) ◽  
pp. 74-87
Author(s):  
Sergey Kozyrev ◽  
Daniil Korabelnikov ◽  
Vasiliy Pop ◽  
Vladimir Troyan ◽  
Oleg Rukavicyn
Keyword(s):  
Multiple Myeloma ◽  
Peripheral Blood Stem Cell ◽  
Clinical Signs ◽  
Conventional Radiography ◽  
Extramedullary Plasmacytoma ◽  
Nuclear Medicine Imaging ◽  
X Ray ◽  
Positron Emission ◽  
Pet Ct ◽  
Magnetic Resonance Imaging Mri

Extraosseous manifestations are found in less than 5% of patients with multiple myeloma. Involvement of the gastrointestinal system in the course of multiple myeloma (MM) is extremely rare. Imaging is required for correct staging, in the followup after treatment and is predictor of prognosis. Several imaging technologies are used for the diagnosis and management of patients with MM. Conventional radiography, computed tomography (CT), magnetic resonance imaging (MRI) and nuclear medicine imaging - positron emission tomography (PET) combined with CT (PET/CT) and PET combined with MRI (PET/MRI) are all used in clarifying the extent of bone and soft tissue lesions in MM. The brief literature review on extramedullary lesions in MM and their imaging with recommendations is given. We describe the imaging in diagnostics and management of an rare case of secondary extramedullary plasmacytoma (EMP) in relapse involving the pancreas and duodenum with the bleeding in a patient with MM, IgA lambda, stage II, after 6-years treatment with chemotherapy, autologous peripheral blood stem cell transplantation and radiotherapy. EMP was detected by PET/CT before the appearance of obvious clinical signs, and then EMP was monitoring by PET/CT, X-ray and ultrasound.

scholarly journals Imaging features of bilateral vestibular neuritis

2019 ◽  
Vol 76 (2) ◽  
pp. 216-218
Author(s):  
Dusko Kozic ◽  
Slobodanka Lemajic-Komazec ◽  
Mladen Bjelan ◽  
Jasmina Boban ◽  
Slavica Sotirovic-Senicar ◽  
...  
Keyword(s):  
High Resolution ◽  
Clinical Signs ◽  
Clinical Findings ◽  
Vestibular Neuritis ◽  
Slice Thickness ◽  
Imaging Features ◽  
Vestibulocochlear Nerve ◽  
Diagnostic Modality ◽  
Magnetic Resonance Imaging Mri ◽  
Improve Correlation

Introduction. The magnetic resonance imaging (MRI) was found to be insensitive diagnostic modality in detecting the abnormalities in patients with vestibular neuritis. Case report. A 32-year-old man was admitted to hospital with clinical signs of acute vestibular neuritis. The conventional MRI was inconclusive, including 3 mm slice-thickness postcontrast study, while the postcontrast high resolution study with 1 mm slice-thikness, detected bilateral enhancement of the vestibulocochlear nerve?s vestibular branch, consistent with inflammation. Conclusion. High-resolution 1 mm or submilimeter slices should be perfomed to evaluate patients with vestibular neuritis in order to increase the MRI sensitivity and improve correlation with clinical findings.

Hyperprolactinemia and anti-psychotics: Prevalence and risk factors

2017 ◽  
Vol 41 (S1) ◽  
pp. S763-S763
Author(s):  
B. Walid ◽  
I. Marrag ◽  
R. Ben Soussia ◽  
F. Ellouze ◽  
M. Nasr
Keyword(s):  
Risk Factors ◽  
Side Effects ◽  
Elevated Serum ◽  
Clinical Signs ◽  
Cross Sectional Study ◽  
Serum Prolactin ◽  
Anti Psychotic ◽  
Cross Sectional ◽  
Competing Interest ◽  
Magnetic Resonance Imaging Mri

IntroductionHyperprolactinemia is a frequent side effect observed in patients treated with anti-psychotic drugs. The frequency of clinical signs usually correlates with elevated serum prolactin levels.ObjectivesTo estimate the prevalence of hyperprolactinemia among patients treated with a single anti-psychotic and specify the risk factors for its occurrence.MethodsCross-sectional study performed in a period of 6 months in the psychiatric department of Mahdia's hospital, for all patients seen in the consultation and treated with a single anti-psychotic for 12 weeks, with a stable dose, and meeting the inclusion and exclusion criteria of the study. Prolactin blood tests have been performed and confirmed by a second one in case of abnormality objectified in the first lab test results. A magnetic resonance imaging (MRI) was intended for patients with prolactin levels greater than 150 ng/mL.ResultsNinety-two patients were gathered. Prevalence of hyperprolactinemia was 34.8% of which 7.6% had prolactin levels greater than 150 ng/mL. Two macroadenomas’ cases were detected. The analytical study found 7 factors significantly correlated with hyperprolactinemia, which are: female sex, substance use, the presence of side effects, prescription of atypical anti-psychotics, the anti-psychotic treatment prescribed: haloperidol/amisulpride, doses of anti-psychotic greater than 1000 mg equivalent to chlorpromazine and the combination of psychotropic drugs.ConclusionProlactin blood test should be a systematical analysis for all patients treated with anti-psychotics, to prevent the short and long term side effects.Disclosure of interestThe authors have not supplied their declaration of competing interest.

scholarly journals PET/MRI Imaging in High-Risk Sarcoma: First Findings and Solving Clinical Problems

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Markus K. Schuler ◽  
Stephan Richter ◽  
Bettina Beuthien-Baumann ◽  
Ivan Platzek ◽  
Jörg Kotzerke ◽  
...  
Keyword(s):  
Clinical Decision Making ◽  
Imaging Technique ◽  
Clinical Decision ◽  
Whole Body ◽  
Mri Imaging ◽  
Cross Sectional ◽  
Positron Emission ◽  
Magnetic Resonance Imaging Mri ◽  
Sarcoma Treatment ◽  
Clinical Problems

Simultaneous positron emission tomography (PET) and magnetic resonance imaging (MRI) is a new whole-body hybrid PET/MR imaging technique that combines metabolic and cross-sectional diagnostic imaging. Since the use of MRI in imaging of soft-tissue sarcoma is extremely beneficial, investigation of the combined PET/MRI is of great interest. In this paper, we present three cases and first data. Combined PET/MRI technique can support the process of clinical decision-making and give answers to some meaningful questions when treating patients with STS. Therefore, the combined modality of simultaneous PET/MRI offers new pieces to the puzzle of sarcoma treatment.

Vaginal masses: magnetic resonance imaging features with pathologic correlation

2007 ◽  
Vol 48 (8) ◽  
pp. 921-933 ◽  
Author(s):  
K. M. Elsayes ◽  
V. R. Narra ◽  
J. R. Dillman ◽  
V. Velcheti ◽  
O. Hameed ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
Pelvic Mri ◽  
Mri Features ◽  
Cross Sectional Imaging ◽  
Magnetic Resonance Imaging Mri

The detection of vaginal lesions has increased with the expanding use of cross-sectional imaging. Magnetic resonance imaging (MRI)—with its high-contrast resolution and multiplanar capabilities—is often useful for characterizing vaginal masses. Vaginal masses can be classified as congenital, inflammatory, cystic (benign), and neoplastic (benign or malignant) in etiology. Recognition of the typical MR imaging features of such lesions is important because it often determines the treatment approach and may obviate surgery. Finally, vaginal MR imaging can be used to evaluate post-treatment changes related to previous surgery and radiation therapy. In this article, we will review pertinent vaginal anatomy, vaginal and pelvic MRI technique, and the MRI features of a variety of vaginal lesions with pathological correlation.

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