112 results match your criteria: "Imaging in CNS Cryptococcosis"

Management, outcomes and predictors of mortality of Cryptococcus infection in patients without HIV: a multicentre study in 46 hospitals from Australia and New Zealand.

Clin Infect Dis

December 2024

Centre for Infectious Diseases and Microbiology Laboratory Services, Institute of Clinical Pathology and Medical Research, New South Wales Health Pathology, Westmead Hospital, The University of Sydney, Sydney, NSW, Australia.

Background: Limited data exist regarding outcomes of cryptococcosis in patients without HIV with few studies having compared outcomes of Cryptococcus gattii, versus C. neoformans, infection.

Methods: We conducted a retrospective study in 46 Australian and New Zealand hospitals to determine the outcomes of cryptococcosis in patients without HIV diagnosed between 2015 and 2019, and compared outcomes of C.

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Primary cutaneous cryptococcosis - History, concepts, clinical and therapeutic update.

An Bras Dermatol

November 2024

Department of Infectology, Dermatology, Diagnostic Imaging and Radiotherapy, Faculty of Medicine, Universidade Estadual Paulista, Botucatu, SP, Brazil.

Cryptococcosis is a disease caused by fungi of the genus Cryptococcus, with the species Cryptococcus neoformans and Cryptococcus gattii being recognized as pathogenic. Cutaneous cryptococcosis can be classified as "secondary", developing from a previous systemic disease, or, on the contrary, "primary", resulting from transcutaneous inoculation of the agent. It can also be classified as "disseminated cutaneous cryptococcosis", when there is an associated systemic disease, or "localized", when it is restricted to the skin.

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Background: Cerebral venous sinus thrombosis (CVST), a serious cerebrovascular and neurological emergency, is common in pregnant individuals and accounts for approximately 0.5-1.0% of all cerebrovascular diseases.

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Cryptococcosis, an infection caused by , predominantly targets the central nervous system (CNS) in patients with AIDS but is not limited to this group. The disease can also occur in individuals with various immunosuppressive conditions, frequently involving the brain or lungs. Cryptococcal meningitis (CM) is the most common form of fungal meningoencephalitis, leading to intracerebral infections, cerebral infarction, or hydrocephalus.

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Article Synopsis
  • - A young male with HIV and poor adherence to antiretroviral therapy developed cryptococcal meningitis, emphasizing the need for awareness of such conditions in immunocompromised patients.
  • - Imaging studies, specifically CT and MRI, revealed key features like basal ganglia enhancement and leptomeningeal involvement, important for diagnosing cryptococcal infections.
  • - The report highlights the importance of using advanced imaging and cerebrospinal fluid analysis for quick treatment initiation, showing the need for a comprehensive approach to managing cryptococcal meningitis.
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Article Synopsis
  • PLX5622 is a small molecular inhibitor that targets the CSF1 receptor, primarily used to deplete macrophages in the central nervous system of C57BL/6 mice.
  • After one week of treatment, it was found to significantly reduce interstitial macrophages in the lungs and brains, leading to decreased infection from the fungus Cryptococcus neoformans.
  • The study highlights that while PLX5622 effectively reduces fungal lung infection, its impact relies on the presence of lymphocytes, as treatment does not alter fungal burden in lymphocyte-deficient mice.
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Background: The radiological manifestations of central nervous system (CNS) cryptococcosis are diverse and often subtle. There is heterogeneity on how different neuroimaging patterns impact prognosis. This study aims to assess the association between the neuroimaging and clinical outcomes of CNS cryptococcosis.

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Background: Neurological manifestations are one of the major concerns for patients with human immunodeficiency virus (HIV). The secondary spectrum includes space-occupying lesions (SOL), including tuberculoma, cryptococcosis, candidiasis, toxoplasmosis, primary central nervous system lymphoma (PCNSL), and progressive multifocal leukoencephalopathy (PML).

Aim: To assess the neurological manifestations, disease outcome, and their associations with cluster of differentiation 4 (CD4) counts in patients with HIV.

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Preclinical Models for Cryptococcosis of the CNS and Their Characterization Using In Vivo Imaging Techniques.

J Fungi (Basel)

February 2024

Biomedical MRI, Department of Imaging and Pathology, KU Leuven, 3000 Leuven, Belgium.

Infections caused by and remain a challenge to our healthcare systems as they are still difficult to treat. In order to improve treatment success, in particular for infections that have disseminated to the central nervous system, a better understanding of the disease is needed, addressing questions like how it evolves from a pulmonary to a brain disease and how novel treatment approaches can be developed and validated. This requires not only clinical research and research on the microorganisms in a laboratory environment but also preclinical models in order to study cryptococci in the host.

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This chapter provides guidance for introducing Cryptococcus neoformans into the zebrafish larvae model system to establish a CNS infection phenotype that mimics cryptococcal meningitis as seen in humans. The method outlines techniques for visualizing different stages of pathology development, from initial to severe infection profiles. The chapter provides tips for real time visualization of the interactions between the pathogen and different aspects of the CNS anatomy and immune system.

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Imaging of Uncommon Bacterial, Rickettsia, Spirochete, and Fungal Infections.

Neuroimaging Clin N Am

February 2023

Department of Radiology, Soon Chun Hyang University Hospital, 170 Jomaruro, Bucheonsi, Gyunggido, Bucheon 14584, Republic of Korea.

This article reviews uncommon bacterial (brucellosis, actinomycosis, neuromelioidosis, nocardiosis, whipple disease, and listeriosis), Rickettsia, spirochete (neurosyphilis and Lyme disease), and fungal (mucormycosis, aspergillosis, candidiasis, cryptococcosis, and Cladophialophora bantiana) diseases affecting central nervous system (CNS), focusing primarily on their cranial manifestations. These infections often show a variety of neuroimaging features that may be similar or differ from typical pyogenic bacterial meningitis and abscess. Familiarity with these patterns is essential for timely recognition and initiation of appropriate management.

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: Central nervous system (CNS) disorders are estimated to occur in approximately 10-20% of people living with HIV (PLWH). They are more commonly observed in newly diagnosed patients and in previously untreated patients or those refusing to undergo antiretroviral treatment. CNS diseases can also be the first manifestation of HIV/AIDS infection.

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Cryptococcal Meningitis in Kidney Transplant Recipients: A Two-Decade Cohort Study in France.

Pathogens

June 2022

Service de Soins Intensifs Néphrologiques et Rein Aigu, French Intensive Renal Network, Hôpital Tenon, 75020 Paris, France.

Cryptococcosis is the third most common cause of invasive fungal infection in solid organ transplant recipients and cryptococcal meningitis (CM) its main clinical presentation. CM outcomes, as well as its clinical features and radiological characteristics, have not yet been considered on a large scale in the context of kidney transplantation (KT). We performed a nationwide retrospective study of adult patients diagnosed with cryptococcosis after KT between 2002 and 2020 across 30 clinical centers in France.

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Molecular epidemiology and microbiological characteristics of Cryptococcus gattii VGII isolates from China.

PLoS Negl Trop Dis

February 2022

Center of Clinical Laboratory Medicine, the First Medical Centre, Chinese PLA General Hospital, Beijing, China.

Cryptococcus gattii (C. gattii) is a fungal pathogen that once caused an outbreak of cryptococcosis on Vancouver Island, and had spread worldwide, while few data were available in China. In this study, seven clinical isolates of C.

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Background: Neutralizing anti-granulocyte-macrophage colony-stimulating factor (GM-CSF) autoantibodies (AAbs) have been increasingly recognized to predispose healthy individuals to disseminated cryptococcosis. However, studies have only considered patients with central nervous system (CNS) infection. No longitudinal study has captured the disease spectrum and clinical course.

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With the advent of antiretroviral therapy (ART), the prognosis of people infected with human immunodeficiency virus (HIV) has improved, and the frequency of HIV-related central nervous system (CNS) diseases has decreased. Nevertheless, mortality from HIV-related CNS diseases, including those associated with ART (e.g.

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Cryptococcosis is a systemic infection and it may occur in immunocompromised and immunocompetent hosts. In order to better understand the clinical characteristics of patients with PC in different immune status, we retrospectively investigated the clinical, radiological, and treatment profiles of immunocompetent and immunocompromised patients with PC during a 10-year period (2008-2017). As a result, out of 136 patients, 94 (69.

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Background: Disseminated cryptococcosis is less common in individuals with normal immune function. Most cases occur in HIV-infected people. Usually it affects the lungs, followed by the central nervous system (CNS), skin and bone marrow, but rarely to the lymph nodes and chest wall.

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A Rare Case of Combined Pulmonary Cryptococcosis and Cryptococcal Meningitis in Renal Allograft Recipient.

Indian J Crit Care Med

December 2019

Department of Pathology, Division of Histopathology, Sir Ganga Ram Hospital, New Delhi, India.

Unlabelled: Invasive cryptococcosis is the third most common invasive fungal infection among organ transplant recipients. The most frequently encountered clinical manifestation is cryptococcal meningoencephalitis (CM) which may be easily missed because of varying clinical presentations. 1-year mortality is estimated at 20-30% even with long-term consolidated antifungal therapy.

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Background: Idiopathic CD4 lymphocytopenia (ICL) is a rare clinical disease with relative CD4 deficiency in the absence of HIV infection. The pathogenicity of ICL is poorly understood with an unclear incidence rate in the general population. Sequelae of ICL includes AIDS-defining infections, which most commonly includes Cryptococcus neoformans.

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In the last two decades, central nervous system (CNS) cryptococcosis (CNSc) has emerged as a major opportunistic infection in the immunocompromised population of India. We have analyzed the clinical features of CNSc and epidemiology of Cryptococcus neoformans and Cryptococcus gattii. A total of 160 clinical isolates of C.

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Article Synopsis
  • The study investigates the link between MRI findings and clinical severity in patients with cryptococcal meningitis who do not have HIV, focusing on differences between immunocompetent and immunocompromised individuals.
  • A total of 65 patients were analyzed, revealing that those with underlying health issues experienced more severe symptoms, such as high neutrophil levels and increased cerebrospinal fluid cell counts.
  • Results indicated that patients with underlying diseases had more brain lesions and a greater correlation between the number of affected brain areas and cerebrospinal fluid characteristics.
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Objective: is a common opportunistic infection in adults with acquired immunodeficiency syndrome worldwide. However, limited data exist for HIV-infected patients in the post-HAART (highly active antiretroviral therapy) era in Brazil. The aim of this study was to describe the clinical characteristics and outcomes of cryptococcosis in a cohort of patients attending a teaching tertiary care hospital in southern Brazil after the introduction of HAART in Brazil.

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Cryptococcosis is a common invasive fungal infection (IFI) in solid organ transplant (SOT) recipients. Little is known about cryptococcosis in lung transplant (LTx) recipients despite having one of the highest risks of infection. The aim of this study was to describe demographic and clinical features of cryptococcal infection in LTx recipients.

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