scholarly journals The many faces of primary and secondary hepatic lymphoma: imaging manifestations and diagnostic approach

2019 ◽  
Vol 52 (5) ◽  
pp. 325-330 ◽  
Author(s):  
Aldo Maurici Araújo Alves ◽  
Ulysses Santos Torres ◽  
Fernanda Garozzo Velloni ◽  
Bruno Jucá Ribeiro ◽  
Dario Ariel Tiferes ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Bone Marrow ◽  
Wide Spectrum ◽  
Imaging Features ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Primary Hepatic Lymphoma ◽  
Non Hodgkin Lymphoma ◽  
The Many

Abstract Hepatic lymphoma can be divided into its primary and secondary forms. To be classified as primary hepatic lymphoma, the disease should be limited to the liver and hilar lymph nodes, with no distant involvement (to the bone marrow or other sites). Primary hepatic lymphoma is quite rare, accounting for less than 1% of all cases of non-Hodgkin lymphoma, whereas secondary hepatic lymphoma affects nearly half of such cases. Familiarity with the imaging features of hepatic lymphoma is important for its early diagnosis and appropriate management. In this essay, we aim to review the roles of computed tomography and magnetic resonance imaging in identifying and monitoring hepatic lymphomas, using sample cases to describe and illustrate the wide spectrum of imaging findings in the primary and secondary forms of this disorder.

Imaging of CNS Fungal Infections: Review Article

2021 ◽  
Vol 104 (5) ◽  
pp. 872-885
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Central Nervous System ◽  
Nervous System ◽  
Magnetic Resonance ◽  
Fungal Infections ◽  
Imaging Features ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri

Fungal infections of the central nervous system (CNS) are usually identified in immunocompromised patients but rare in immunocompetent hosts. The clinical and imaging manifestations are mainly influenced by types of fungal pathogen and immune status of the patients. The CNS fungal infections can develop through hematogenous dissemination from primary site of infection, cerebrospinal fluid seeding, or direct extension from adjacent sources of infection. Fungal infections can result in meningitis, meningoencephalitis, cerebritis, granuloma, or abscess formation, which imaging findings are often non-specific and difficult to distinguish from bacterial or tuberculous infection, non-infectious inflammatory disease, or even intracranial neoplasm. Vascular complications including vasculitis, cerebral infarction, or mycotic aneurysm are commonly present due to angioinvasion of fungal hyphae. In addition, some characteristic imaging features of fungal infections can be identified by computed tomography (CT) or magnetic resonance imaging (MRI), such as intracavitary projections in fungal abscesses and gelatinous pseudocysts in cryptococcosis that could help suggest the diagnosis. Recognizing the imaging findings of common intracranial fungal infections combined with appropriate clinical setting is crucial for allowing early diagnosis and leading to early specific treatment. The present article reviewed common imaging findings of CNS fungal infections and distinct imaging features of specific pathogens. Keywords: Fungal infection, Brain abscess, Cryptococcosis, Central nervous system (CNS), Computed tomography (CT), Diffusion weighted imaging (DWI), Magnetic resonance imaging (MRI)

Computed tomography and magnetic resonance imaging findings of primary bladder angiosarcoma: a case report

2014 ◽  
Vol 38 (2) ◽  
pp. 212-214 ◽  
Author(s):  
Mehmet Beyazal ◽  
Necip Pirinççi ◽  
Alpaslan Yavuz ◽  
Sercan Özkaçmaz ◽  
Gülay Bulut
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Case Report ◽  
Magnetic Resonance ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Primary Bladder

scholarly journals Epidermoid Cyst in Meckel's Cave With Unusual Computed Tomography and Magnetic Resonance Imaging Findings

2010 ◽  
Vol 50 (8) ◽  
pp. 701-704 ◽  
Author(s):  
Atsushi ARAI ◽  
Takashi SASAYAMA ◽  
Junji KOYAMA ◽  
Atsushi FUJITA ◽  
Kohkichi HOSODA ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Epidermoid Cyst ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Meckel’S Cave ◽  
Meckel's Cave

scholarly journals Inflammatory myofibroblastic tumor of the liver mimicking an infiltrative malignancy in computed tomography and magnetic resonance imaging with Gd-EOB

2014 ◽  
Vol 3 (7) ◽  
pp. 204798161454440 ◽  
Author(s):  
Tahir Durmus ◽  
Carsten Kamphues ◽  
Hendrik Blaeker ◽  
Christian Grieser ◽  
Timm Denecke
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Liver Tumors ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Diagnostic Challenge ◽  
Number Of Patients ◽  
Inflammatory Myofibroblastic Tumors ◽  
Malignant Liver

Inflammatory myofibroblastic tumors (IMT) are a benign tumor entity, which rarely develop in the liver. Surgery is the most common treatment for these lesions as it is difficult to distinguish them from malignant liver tumors and local recurrent growth may occur. IMT is a diagnostic challenge for imaging. Only a limited number of reports of single cases or small number of patients described the imaging features on computed tomography. Reports on IMT appearance on magnetic resonance imaging are scarce. We present a case of IMT of the liver with infiltration of the abdominal wall treated with surgery and describe the imaging features with the use of the hepatobiliary contrast agent, gadoxetic acid (Gd-EOB).

scholarly journals Immunoglobulin G4-related disease: autoimmune pancreatitis and extrapancreatic manifestations

2016 ◽  
Vol 49 (2) ◽  
pp. 122-125 ◽  
Author(s):  
Daniel Alvarenga Fernandes ◽  
Ricardo Yoshio Zanetti Kido ◽  
Ricardo Hoelz de Oliveira Barros ◽  
Daniel Lahan Martins ◽  
Thiago José Penachim ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Autoimmune Disease ◽  
Systemic Autoimmune Disease ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Immunoglobulin G4 ◽  
Related Disease ◽  
Igg4 Related Disease

Abstract We present a case of immunoglobulin G4 (IgG4)-related disease with pancreatic and extrapancreatic involvement, including the biliary and renal systems. Given the importance of imaging methods for the diagnosis of IgG4-related disease and its differentiation from pancreatic adenocarcinoma, we emphasize important abdominal computed tomography and magnetic resonance imaging findings related to this recently recognized systemic autoimmune disease.

scholarly journals Mucinous Neoplasm of the Appendix as a Mimic of Cystic Adnexal Pathology

2018 ◽  
Vol 8 ◽  
pp. 32 ◽  
Author(s):  
Chris Hutchinson ◽  
Jonathan Lyske ◽  
Vimal Patel ◽  
Gavin Low
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Mucinous Tumor ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Mucinous Neoplasm ◽  
Ultrasound Computed Tomography ◽  
Adnexal Pathology

Pelvic pain presents a common diagnostic conundrum with a myriad of causes ranging from benign and trivial to malignant and emergent. We present a case where a mucinous neoplasm of the appendix acted as a mimic for tubular adnexal pathology on imaging. With the associated imaging findings on ultrasound, computed tomography, and magnetic resonance imaging, we wish to raise awareness of mucinous tumors of the appendix when tubular right adnexal pathology is present both in the presence of pelvic or abdominal pain or when noted incidentally. Tubular pathology such as uncomplicated paraovarian cysts or hydrosalpinx is frequently treated conservatively with long-interval follow-up imaging or left to clinical follow-up. Thus, if incorrectly diagnosed as tubular pathology, an appendix mucocele or mucinous neoplasm of the appendix is likely to be undertreated. We wish to clarify some of the confusion around nomenclature and classification of the multiple entities that are comprised by the terms mucocele and mucinous tumor of the appendix.

scholarly journals Cerebellar Liponeurocytoma: A Rare Fatty Tumor and its Literature Review

2019 ◽  
Vol 10 (02) ◽  
pp. 360-363 ◽  
Author(s):  
Harsh Deora ◽  
A. R. Prabhuraj ◽  
Jitender Saini ◽  
T. C. Yasha ◽  
Arivazhagan Arimappamagan
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Intracranial Pressure ◽  
Gait Ataxia ◽  
Imaging Features ◽  
Rare Entity ◽  
Raised Intracranial Pressure ◽  
Resonance Imaging ◽  
Cerebellar Liponeurocytoma

ABSTRACTCerebellar liponeurocytoma is a rare oncological entity, and the knowledge about the treatment and outcome of these rare tumors is still evolving. Very few cases have been described in literature. We report a middle-aged male who presented with raised intracranial pressure features and gait ataxia. His imaging features revealed classical features of liponeurocytoma in cerebellar vermis, with abundant fat component evident in both computed tomography and magnetic resonance imaging. He underwent resection of the lesion and has been asymptomatic for 4 years. This report describes the classical radiological and immunohistochemical features of this rare entity with favorable outcome and reviews the existing literature.

scholarly journals Magnetic resonance imaging findings in a patient with cryopyrin-associated periodic syndrome: A rare hereditary multi-system inflammatory disorder

2019 ◽  
Vol 32 (6) ◽  
pp. 420-425
Author(s):  
Jessica Behringer ◽  
Maura Ryan ◽  
Michael Miller ◽  
Alok Jaju
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Wide Spectrum ◽  
Cauda Equina ◽  
Inflammatory Disorder ◽  
Periodic Syndrome ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Nlrp3 Gene ◽  
Organ Systems

Cryopyrin-associated periodic syndrome is a hereditary inflammatory disorder encompassing a wide spectrum of clinical phenotypes. This disorder has been associated with mutation of the NLRP3 gene coding for cryopyrin, which leads to overproduction of interleukin-1. The condition causes relapsing bouts of inflammation involving multiple organ systems, including the central nervous system, and, if untreated, can lead to long-term debilitating effects. A literature review revealed only a few brief descriptions of magnetic resonance imaging findings in cryopyrin-associated periodic syndrome patients. We describe serial magnetic resonance imaging findings in an 11-year-old female with clinically diagnosed cryopyrin-associated periodic syndrome who presented with intermittent headaches, progressive sensorineural hearing loss, fevers, and abdominal pain. The magnetic resonance imaging showed progressively worsening low T2 signal in the cochlea, cochlear enhancement, and leptomeningeal enhancement. We also describe some previously unreported findings in this syndrome, including cranial nerve and cauda equina enhancement.

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