Magnetic resonance spectroscopy in the diagnosis and etiological definition of brain bacterial abscesses

Morais, Lívia Tavares; Zanardi, Verônica A.; Faria, Andréia V.

doi:10.1590/s0004-282x2007000700010

Cited by 10 publications

(3 citation statements)

References 23 publications

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“…At perfusion-weighted imaging, low values in the peripheral areas often indicate an abscess, whereas high values suggest a necrotic tumor [11]. On MRS, brain abscesses show decreased NAA levels and increased lactic acid levels [12,13]. Moreover, positron emission tomography and single photon emission computed tomography may also assist differential diagnosis [14].…”

Section: Discussionmentioning

confidence: 99%

Cerebral Herniation Caused by Post-irradiation Brain Abscess: A Report of Two Cases and a Systematic Review

Jiang¹,

Yang²,

Liu³

et al. 2011

Am. J. Biomed. Sci.

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Radiation-induced necrosis is commonly seen after radiotherapy for nasopharyngeal carcinoma (NPC), but a post-irradiation brain abscess is rarely encountered and easily overlooked, which may lead to a dismal outcome. We describe two Chinese men with cerebral herniation caused by temporal lobe abscess within a radio-necrotic lesion presenting only with headache and neurological defects. Cranial magnetic resonance imaging (MRI) or computed tomography (CT) showed cystic lesions in the temporal lobe with a severe mass effect. Both patients had brain herniation before emergency operations. Therefore, our findings suggest that a post-irradiation brain abscess may insidiously develop into disastrous herniation, and regular multi-modality neuroimaging follow-up should be carried out to help avoid this situation.

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Section: Discussionmentioning

confidence: 99%

Cerebral Herniation Caused by Post-irradiation Brain Abscess: A Report of Two Cases and a Systematic Review

Jiang¹,

Yang²,

Liu³

et al. 2011

Am. J. Biomed. Sci.

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“…Magnetic resonance imaging (MRI) is another imaging technique that offers the ability to visualise in real time the bacterial infections in vivo and study the impact of antibiotics on the bacterial proliferation and viability. The majority of MRI applications are in the detection of bacterial-associated conditions, such as bacterial meningoencephalitis [140], bacterial pyomyositis [141] or bacterial abscesses [142]. However, labelling of MRI probes has led to the development of MRI imaging directly for bacteria.…”

Section: Bacterial Imagingmentioning

confidence: 99%

Current and Future Trends in the Clinical Diagnosis of Rickettsioses Sensu Lato

Missailidis

Godoy²,

Mares-Guia³

et al. 2014

IJTDH

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Aims:The aim of this review is to present Rickettsioses sensu lato, with emphasis on their current and future clinical diagnosis. The review presents the conditions, the agents that cause them, and the current gold standards on their diagnosis in national and international reference centres. Additionally, this review covers the various emerging technologies available in the diagnosis of Rickettsioses and discusses their potential for future use as gold standards in the diagnosis of these diseases. Introduction: The introduction presents Rickettsioses sensu lato and gives a broad overview of the conditions they cause, the issues associated with their current diagnosis and the need for their improved, earlier and more accurate diagnosis, in order to prevent current issues with false negatives, misdiagnosis or delay in the diagnosis associated with these conditions, which often renders them grave or lethal. Main Body: The main body of the review presents in independent sections Rickettsias, Ehrlichia, Anaplasma, Bartonella and Coxiella and the conditions associated with each of these bacteria. Spotted fever, endemic typhus, human granulocytic anaplasmosis, human monocytic ehrlichioses, bartonellosis and Q-fever are some of the conditions associated with this group of proteobacteria. The emphasis is on the clinical diagnosis of these conditions and an overview of the current practice, gold standards in reference

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“…18 Restricted water diffusion in fungal and bacterial abscesses reflects highly proteinaceous purulent fluid. [19][20][21] In the postoperative period, distinction between bland serous extracerebral collections and subdural empyema can be suggested by restricted DWI (Fig. 2).…”

Section: Noninfectious Mimes Of Cns Infections Must Bementioning

confidence: 99%

Central Nervous System Infections in Cancer Patients

Pruitt

2010

Semin Neurol

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With improved treatments, patients with many types of cancer survive longer. However, both the acute adverse effects of more intensive therapies and the risks of chronic immunosuppression have led to a diverse and evolving spectrum of central nervous system (CNS) infections. The presentation and course of CNS infections in cancer patients may be different from those in patients without cancer, complicating and delaying accurate diagnosis. New syndromes related both to the underlying malignancies and to their treatment continue to emerge. Noninfectious disorders such as adverse drug effects, vascular lesions, and radiation effects can mimic CNS infections. The two major clinical presentations of CNS infections are meningoencephalitic syndromes and focal deficits due to mass lesions. The range of pathogens can be narrowed by considering the type of immune deficit present, local nosocomial trends, and the specific vulnerabilities created by the underlying disease and treatment regimen. Patients undergoing neurosurgical procedures and those receiving hematopoietic cell transplants (HCT) account for the majority of cancer patients with CNS infections. Significant recent changes reviewed here include evolving patterns of bacterial meningitis, current treatment recommendations for fungal infections, special infectious risks associated with immunomodulatory therapies, and neuroimaging techniques to distinguish infection from other intracranial processes.

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Magnetic resonance spectroscopy in the diagnosis and etiological definition of brain bacterial abscesses

Cited by 10 publications

References 23 publications

Cerebral Herniation Caused by Post-irradiation Brain Abscess: A Report of Two Cases and a Systematic Review

Cerebral Herniation Caused by Post-irradiation Brain Abscess: A Report of Two Cases and a Systematic Review

Current and Future Trends in the Clinical Diagnosis of Rickettsioses Sensu Lato

Central Nervous System Infections in Cancer Patients

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