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Mertiri L, Freiling JT, Desai NK, Kralik SF, Huisman TAGM. Pediatric and adult meningeal, parenchymal, and spinal tuberculosis: A neuroimaging review. J Neuroimaging 2024; 34:179-194. [PMID: 38073450 DOI: 10.1111/jon.13177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 11/24/2023] [Accepted: 11/28/2023] [Indexed: 03/12/2024] Open
Abstract
Neurotuberculosis is defined as a tuberculous infection of the meninges, brain parenchyma, vessels, cranial and spinal nerves, spinal cord, skull, and spine that can occur either in a localized or in a diffuse form. It is a heterogeneous disease characterized by many imaging appearances and it has been defined as "the great mimicker" due to similarities with many other conditions. The diagnosis of central nervous system (CNS) tuberculosis (TB) is based on clinical presentation, neuroimaging findings, laboratory and microbiological findings, and comprehensive evaluation of the response to anti-TB drug treatment. However, the absence of specific symptoms, the wide spectrum of neurological manifestations, the myriad of imaging findings, possible inconclusive laboratory results, and the paradoxical reaction to treatment make the diagnosis often challenging and difficult, potentially delaying adequate treatment with possible devastating short-term and long-term neurologic sequelae. Familiarity with the imaging characteristics helps in accurate diagnosis and may prevent or limit significantly morbidity and mortality. The goal of this review is to provide a comprehensive up-to-date overview of the conventional and advanced imaging features of CNS TB for radiologists, neuroradiologists, and pediatric radiologists. We discuss the most typical neurotuberculosis imaging findings and their differential diagnosis in children and adults with the goal to provide a global overview of this entity.
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Affiliation(s)
- Livja Mertiri
- Edward B. Singleton Department of Radiology, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - John T Freiling
- Edward B. Singleton Department of Radiology, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Nilesh K Desai
- Edward B. Singleton Department of Radiology, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Stephen F Kralik
- Edward B. Singleton Department of Radiology, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Thierry A G M Huisman
- Edward B. Singleton Department of Radiology, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
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Chaganti SS, Sidhom G, Chaganti J. Multiparametric imaging in the evaluation of intracerebral abscesses. Pract Neurol 2023; 23:376-385. [PMID: 37248041 DOI: 10.1136/pn-2023-003694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2023] [Indexed: 05/31/2023]
Abstract
Cerebral abscesses are uncommon space occupying lesions; they are associated with high morbidity and mortality, though are potentially treatable. Patients often present with non-specific symptoms and may have few clinical signs. Routine clinical imaging may not give a definite diagnosis, as the findings can be indistinguishable from those of other intracranial mass lesions. We review the role of advanced MR techniques to characterise brain abscesses and discuss the role of imaging in monitoring their response to the treatment.
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Affiliation(s)
- Sai Sivananda Chaganti
- Fellow, Department of Neurology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - George Sidhom
- Department of Radiology, St Vincent's Health Australia Ltd, Sydney, New South Wales, Australia
| | - Joga Chaganti
- Department of Radiology, St Vincent's Health Australia Ltd, Sydney, New South Wales, Australia
- Department of Radiology, St Vincent's Hospital Sydney, Sydney, New South Wales, Australia
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3
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Murali S, Shenoy SV, Prabhu RA, Nagaraju SP. Hypertensive emergency and seizures during haemodialysis. BMJ Case Rep 2021; 14:e242471. [PMID: 34548293 PMCID: PMC8458320 DOI: 10.1136/bcr-2021-242471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/26/2021] [Indexed: 11/04/2022] Open
Abstract
Intracranial abscesses are uncommon, serious and life-threatening infections. A brain abscess is caused by inflammation and collection of infected material, coming from local or remote infectious sources. Patients with chronic kidney disease on dialysis are prone to invasive bacterial infections like methicillin-resistant Staphylococcus aureus (MRSA) especially in the presence of central venous catheters or arteriovenous grafts. However, intracranial abscess formation due to MRSA is rare. Here, we present a case of MRSA brain abscess with an atypical clinical presentation in the absence of traditional risk factors.Intracranial abscesses are uncommon, serious, and life-threatening infections. A Brain abscess is caused by inflammation and collection of infected material, coming from local or remote infectious sources. Patients with chronic kidney disease on dialysis are prone to invasive bacterial infections like methicillin-resistant staphylococcus aureus (MRSA) especially in the presence of central venous catheters or arterio-venous grafts. However intracranial abscess formation due to MRSA is rare. Here we present a case of MRSA brain abscess with an atypical clinical presentation in the absence of traditional risk factors. A 46-year-old male with chronic kidney disease (CKD) secondary to chronic glomerulonephritis, on haemodialysis for 4 years through a left brachio-cephalic AVF developed an episode of generalised tonic-clonic seizures lasting 2 min during his scheduled dialysis session. He reported no complaints before entry to the dialysis. On clinical examination, he was drowsy with the absence of any focal motor deficits. His blood pressure was recorded to be 200/120 mm Hg. He was managed in the intensive care unit with mechanical ventilation, intravenous nitroglycerine for blood pressure control, levetiracetam for seizures and empirical vancomycin. Radiological evaluation showed a brain abscess in the midline involving bosth basi-frontal lobes. After medical optimization, the abscess was drained surgically, and the pus cultured. As culture grew Methicillin Resistant Staphylococcus aureus, he was treated with intravenous vancomycin for 6 weeks. On follow up, the abscess had resolved and the patient recovered without any neurological deficits.
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Affiliation(s)
| | | | - Ravindra Attur Prabhu
- Department of Nephrology, Kasturba Medical College Manipal, Manipal, Karnataka, India
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Polvoy I, Qin H, Flavell RR, Gordon J, Viswanath P, Sriram R, Ohliger MA, Wilson DM. Deuterium Metabolic Imaging-Rediscovery of a Spectroscopic Tool. Metabolites 2021; 11:570. [PMID: 34564385 PMCID: PMC8470013 DOI: 10.3390/metabo11090570] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 08/18/2021] [Indexed: 01/31/2023] Open
Abstract
The growing demand for metabolism-specific imaging techniques has rekindled interest in Deuterium (2H) Metabolic Imaging (DMI), a robust method based on administration of a substrate (glucose, acetate, fumarate, etc.) labeled with the stable isotope of hydrogen and the observation of its metabolic fate in three-dimensions. This technique allows the investigation of multiple metabolic processes in both healthy and diseased states. Despite its low natural abundance, the short relaxation time of deuterium allows for rapid radiofrequency (RF) pulses without saturation and efficient image acquisition. In this review, we provide a comprehensive picture of the evolution of DMI over the course of recent decades, with a special focus on its potential clinical applications.
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Affiliation(s)
- Ilona Polvoy
- Department of Radiology and Biomedical Imaging, University of California, 185 Berry St., San Francisco, CA 94158, USA; (I.P.); (H.Q.); (R.R.F.); (J.G.); (P.V.); (R.S.); (M.A.O.)
| | - Hecong Qin
- Department of Radiology and Biomedical Imaging, University of California, 185 Berry St., San Francisco, CA 94158, USA; (I.P.); (H.Q.); (R.R.F.); (J.G.); (P.V.); (R.S.); (M.A.O.)
| | - Robert R. Flavell
- Department of Radiology and Biomedical Imaging, University of California, 185 Berry St., San Francisco, CA 94158, USA; (I.P.); (H.Q.); (R.R.F.); (J.G.); (P.V.); (R.S.); (M.A.O.)
| | - Jeremy Gordon
- Department of Radiology and Biomedical Imaging, University of California, 185 Berry St., San Francisco, CA 94158, USA; (I.P.); (H.Q.); (R.R.F.); (J.G.); (P.V.); (R.S.); (M.A.O.)
| | - Pavithra Viswanath
- Department of Radiology and Biomedical Imaging, University of California, 185 Berry St., San Francisco, CA 94158, USA; (I.P.); (H.Q.); (R.R.F.); (J.G.); (P.V.); (R.S.); (M.A.O.)
| | - Renuka Sriram
- Department of Radiology and Biomedical Imaging, University of California, 185 Berry St., San Francisco, CA 94158, USA; (I.P.); (H.Q.); (R.R.F.); (J.G.); (P.V.); (R.S.); (M.A.O.)
| | - Michael A. Ohliger
- Department of Radiology and Biomedical Imaging, University of California, 185 Berry St., San Francisco, CA 94158, USA; (I.P.); (H.Q.); (R.R.F.); (J.G.); (P.V.); (R.S.); (M.A.O.)
- Department of Radiology, Zuckerberg San Francisco General Hospital, San Francisco, CA 94110, USA
| | - David M. Wilson
- Department of Radiology and Biomedical Imaging, University of California, 185 Berry St., San Francisco, CA 94158, USA; (I.P.); (H.Q.); (R.R.F.); (J.G.); (P.V.); (R.S.); (M.A.O.)
- Department of Radiology and Biomedical Imaging, University of California, 505 Parnassus Ave, San Francisco, CA 94143, USA
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Attia NM, Sayed SAA, Riad KF, Korany GM. Magnetic resonance spectroscopy in pediatric brain tumors: how to make a more confident diagnosis. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2020. [DOI: 10.1186/s43055-020-0135-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Non-invasive diagnosis of pediatric brain tumors can be challenging due to diverse tumor pathologies and similar imaging appearances. Magnetic resonance spectroscopy (MRS), when combined with high spatial resolution anatomic imaging obtained with conventional magnetic resonance imaging (MRI), provides metabolic information within the lesion as well as the surrounding tissue. The differentiation of neoplastic from non-neoplastic lesions and low-grade from high-grade neoplasms is essential for determining the choice of treatment and the best treatment plan. We aimed to measure specific metabolic ratios and evaluate metabolic profiles of various lesions by MRS to assist in making a more confident diagnosis.
Results
The choline/creatine (Cho/Cr), choline/N-acetylaspartate (Cho/NAA), and Cho/NAA+Cr ratios all had statistically significant values for the differentiation between neoplastic and non-neoplastic lesions at cutoffs 1.8, 2, and 0.8 respectively. The Cho/NAA, Cho/Cr, Cho/NAA+Cr, and myo-inositol/creatine (mI/Cr) ratios all had statistically significant values for the differentiation of high-grade from low-grade neoplasms at cutoffs 3.3, 3.5, 1.3, and 1.5 respectively. The presence of a lipid lactate peak was only significant for differentiating high-grade from low-grade neoplasms. Medulloblastomas, diffuse pontine gliomas, and choroid plexus carcinoma all showed characteristic metabolic profiles on MRS. Metastasis showed lower Cho/NAA and Cho/Cr ratios outside the tumor margin than high-grade neoplasms.
Conclusion
The use of certain metabolite ratios with high sensitivity and specificity to distinguish neoplastic from non-neoplastic lesions and low-grade from high-grade neoplasms while assessing the metabolic profile of the lesion aids in the non-invasive diagnosis of pediatric brain tumors. MRS facilitates earlier treatment planning by determining tumor spatial extent and predicting tumor behavior with potential to solve sampling problems of inaccessible and heterogenous lesions as well as unnecessary sampling of benign lesions.
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Borghei-Razavi H, Sharma M, Emch T, Krivosheya D, Lee B, Muhsen B, Prayson R, Obuchowski N, Barnett GH, Vogelbaum MA, Chao ST, Suh JH, Mohammadi AM, Angelov L. Pathologic Correlation of Cellular Imaging Using Apparent Diffusion Coefficient Quantification in Patients with Brain Metastases After Gamma Knife Radiosurgery. World Neurosurg 2019; 134:e903-e912. [PMID: 31733389 DOI: 10.1016/j.wneu.2019.11.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 11/05/2019] [Accepted: 11/06/2019] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To evaluate the role of apparent diffusion coefficient (ADC) in differentiating radiation necrosis (RN) from recurrent tumor after Gamma Knife radiosurgery (GKRS) for brain metastases (BMs). METHODS Forty-one patients with BM who underwent surgical intervention after GKRS at Cleveland Clinic (2006-2017) were included in this retrospective study. The ADC values of the growing lesions and the contralateral hemisphere were calculated using picture archiving and communication system. These values were correlated to the percentage of RN identified on pathologic evaluation of the surgical specimen. RESULTS The median age of the patients was 59 years (range, 25-86 years), and lung cancer (63.4%) was the most common malignancy. Median initial (pre-GKRS) target volume of the lesions was 5.4 cc (range, 0.135-45.6 cc), and median GKRS dose was 18.0 Gy. Surgical resection or biopsy was performed at a median of 176 days after GKRS. Two variables were statistically significant predictors of predominate RN (75%-100%) in the surgical specimen: 1) ADC of the lesion on the preresection magnetic resonance imaging (MRI) and 2) initial pre-GKRS target volume. ADC >1.5 × 10-3 mm2/s within the lesion on MRI predicted significant RN on pathologic evaluation of the lesion (P < 0.05). Similarly, when the target volume before GKRS was large (>10 cc), the risk of identifying significant necrosis in the pathologic specimen was elevated (P < 0.05). CONCLUSIONS Our data suggest that the combination of lesion ADC on MRI prior to surgical intervention and the initial target volume can predict RN with reasonable accuracy.
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Affiliation(s)
- Hamid Borghei-Razavi
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA; Rose Ella Burkhart Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| | - Mayur Sharma
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA; Rose Ella Burkhart Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| | - Todd Emch
- Department of Neuroradiology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Daria Krivosheya
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA; Rose Ella Burkhart Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| | - Bryan Lee
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA; Rose Ella Burkhart Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| | - Baha'eddin Muhsen
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA; Rose Ella Burkhart Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| | - Richard Prayson
- Department of Neuropathology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Nancy Obuchowski
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio, USA
| | - Gene H Barnett
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA
| | - Michael A Vogelbaum
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA; Rose Ella Burkhart Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| | - Samuel T Chao
- Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio, USA; Rose Ella Burkhart Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| | - John H Suh
- Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio, USA; Rose Ella Burkhart Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| | - Alireza M Mohammadi
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA; Rose Ella Burkhart Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| | - Lilyana Angelov
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA; Rose Ella Burkhart Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA.
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Ang SYL, Ng VWL, Kumar SD, Low SYY. Cryptococcosis mimicking lung carcinoma with brain metastases in an immunocompetent patient. J Clin Neurosci 2016; 35:73-75. [PMID: 27769644 DOI: 10.1016/j.jocn.2016.09.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 09/26/2016] [Indexed: 10/20/2022]
Abstract
Cryptococcosis is a fungal infection caused by Cryptococcus spp. that enters the body via inhalation. This ubiquitous yeast has gained notoriety as an opportunistic pathogen in the immunosuppressed population. The authors report a case of a previously-well adult male presented with left-sided weakness. Imaging demonstrated a pulmonary mass and 2 contrast-enhancing intracranial lesions-all features suggestive of a primary lung carcinoma with brain metastases. However, further investigations confirmed disseminated cryptococcosis, without evidence of malignancy. The patient was successfully treated with a course of antifungals. To the authors' knowledge, this is the first reported case of dissemintated cryptococcosis in an immunocompetent adult male, simulating as primary lung carcinoma with brain metastases.
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Affiliation(s)
- Samantha Y L Ang
- Department of Neurosurgery, National Neuroscience Institute, Singapore, Singapore
| | - Victor W L Ng
- Department of Laboratory Medicine, Changi General Hospital, Singapore, Singapore
| | - Shree Dinesh Kumar
- Department of Orthopaedics, Changi General Hospital, Singapore, Singapore
| | - Sharon Y Y Low
- Department of Neurosurgery, National Neuroscience Institute, Singapore, Singapore.
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Elshafey R, Hassanein O, Shakal A, Mokbel E. 1H proton MR spectroscopy and diffusion-weighted imaging in discrimination between pyogenic brain abscesses and necrotic brain tumors. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2014. [DOI: 10.1016/j.ejrnm.2014.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Abstract
Tuberculosis (TB) has shown a resurgence in nonendemic populations in recent years and accounts for 8 million deaths annually in the world. Central nervous system involvement is one of the most serious forms of this infection, acting as a prominent cause of morbidity and mortality in developing countries. The rising number of cases in developed countries is mostly attributed to factors such as the pandemic of acquired immunodeficiency syndrome and increased migration in a globalized world. Mycobacterium TB is responsible for almost all cases of tubercular infection in the central nervous system. It can manifest in a variety of forms as tuberculous meningitis, tuberculoma, and tubercular abscess. Spinal infection may result in spondylitis, arachnoiditis, and/or focal intramedullary tuberculomas. Timely diagnosis of central nervous system TB is paramount for the early institution of appropriate therapy, because delayed treatment is associated with severe morbidity and mortality. It is therefore important that physicians and radiologists understand the characteristic patterns, distribution, and imaging manifestations of TB in the central nervous system. Magnetic resonance imaging is considered the imaging modality of choice for the study of patients with suspected TB. Advanced imaging techniques including magnetic resonance perfusion and diffusion tensor imaging may be of value in the objective assessment of therapy and to guide the physician in the modulation of therapy in these patients.
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Affiliation(s)
- Carlos Torres
- From the *Department of Radiology, The Ottawa Hospital Civic and General Campus, University of Ottawa, Ottawa, Ontario, Canada; †Department of Radiology, The University of Texas Medical Branch, Galveston, TX; ‡Medical College of Georgia, Georgia Regents University, Martinez, GA; and §Department of Radiology, Fortis Memorial Research Institute, Gurgaon, Haryana, India
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Dennler M, Carrera I, Beckmann K, Ritz J, Rütten M, Kircher PR. Imaging diagnosis--Conventional and functional magnetic resonance imaging of a brain abscess in a goat. Vet Radiol Ultrasound 2013; 55:68-73. [PMID: 23663051 DOI: 10.1111/vru.12050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Accepted: 03/27/2013] [Indexed: 11/30/2022] Open
Abstract
A 2-month-old female goat was presented for depressed mental status and multifocal central neurologic signs 3 weeks after hot-iron disbudding. Conventional magnetic resonance imaging (MRI) findings included a large intra axial mass in the left frontal lobe that was T2 hyperintense and T1 hypointense centrally with a contrast-enhancing peripheral capsule and perilesional T2 hyperintensity. A restrictive pattern was present in diffusion-weighted imaging. Magnetic resonance spectroscopy demonstrated an increased amount of succinate, acetate, amino acids, lipids; minimal amounts of lactate; and decreased amounts of N-acetyl aspartate and choline. A cerebral abscess due to Trueperella pyogenes was confirmed from necropsy and tissue culture.
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Affiliation(s)
- Matthias Dennler
- Division of Diagnostic Imaging, Vetsuisse Faculty University of Zurich, Winterthurerstrasse, 260 8057 Zurich, Switzerland
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Patkar D, Narang J, Yanamandala R, Lawande M, Shah GV. Central Nervous System Tuberculosis. Neuroimaging Clin N Am 2012; 22:677-705. [DOI: 10.1016/j.nic.2012.05.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Landriel F, Ajler P, Hem S, Bendersky D, Goldschmidt E, Garategui L, Vecchi E, Konsol O, Carrizo A. Supratentorial and infratentorial brain abscesses: surgical treatment, complications and outcomes--a 10-year single-center study. Acta Neurochir (Wien) 2012; 154:903-11. [PMID: 22362051 DOI: 10.1007/s00701-012-1299-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Accepted: 02/01/2012] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To analyze the variables determining morbidity, mortality and outcome in subjects with brain abscesses treated at a single center over a 10-year period. METHODS A retrospective study was conducted on a series of 59 patients with brain abscesses surgically treated with stereotactically guided aspiration or open craniotomy excision. Such variables as age, gender, clinical presentation, number of days to diagnosis, location, number of lesions, predisposing factors, mechanism of infection, etiological agent, and therapy were analyzed independently. Complications were defined as any deviation from the normal postoperative course occurring within 30 days of surgery, and classified according to a four-point gradual severity scale. Postoperative outcome was appraised through the Glasgow Outcome Scale (GOS) 6 months after surgery, 0-4 points were considered poor outcome and 5 points good outcome. RESULTS Eighty abscesses were diagnosed and surgically managed in 59 patients. The mean age was 44.69 years (range: 0.16-77); 59.3% were female. The median number of days to diagnosis was 7. Most frequent clinical presentations included fever (52.5%), headache (42.4%), and focal neurologic deficits (39%). Mechanism of infection was mainly hematogenous spread (32.2%). Stereotactically guided aspiration was the treatment of choice for 74.6% of the patients, whereas 25.4% of the cases were managed through open craniotomy excision. Outcome was favorable in 81.35% (n = 48) of the subjects. General morbidity was 27.1%, and mortality stood at 10.16%. Out of a total 38.98% (n = 23) of complications, two-thirds were due to medical causes. The analysis of variables revealed that only age (p = 0.02), immunosuppression (OR 5.83; p = 0.012) and hematogenous spread (p < 0.01) were associated with poor outcomes. CONCLUSIONS Immunosuppression, hematogenous spread and advanced age were predictors of poor prognosis. Most of the complications following brain abscess management were not directly related to surgery or surgical technique.
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Affiliation(s)
- Federico Landriel
- Department of Neurosurgery, Hospital Italiano de Buenos Aires, Argentina.
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Dusak A, Hakyemez B, Kocaeli H, Bekar A. Magnetic resonance spectroscopy findings of pyogenic, tuberculous, and Cryptococcus intracranial abscesses. Neurochem Res 2011; 37:233-7. [PMID: 22002661 DOI: 10.1007/s11064-011-0622-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 09/11/2011] [Accepted: 09/27/2011] [Indexed: 12/01/2022]
Abstract
Proton magnetic resonance spectroscopy (MRS) complements conventional methods used to differentiate intracranial cystic lesions. We report MRS findings of three cases that were diagnosed as pyogenic, tuberculous, and Cryptococcus abscesses before instituting any medical or surgical therapy. The pyogenic brain abscess had typical specific spectral findings (i.e., the demonstration of amino acids). Lactate and lipid peaks were visible in the tuberculous abscess. Cryptococcus neoformans can appear differently in different brain regions, which may lead to different spectral findings.
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Affiliation(s)
- Abdurrahim Dusak
- Department of Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, Rochester, NY 14642, USA.
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14
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Gonzalez-Toledo E, Santos Andrade C, Da Costa Leite C, Del Carpio-O'Donovan R, Fayed N, Morales H, Peterson R, Palacios E, Previgliano CH, Rocha AJ, Romero JM, Rugilo C, Staut CCV, Tamer I, Tavares Lucato L, Nader M. An Atlas of Infectious and Parasitic Diseases of the Central Nervous System. A Cooperative Study of SILAN (Sociedad Iberolatinoamericana de Neurorradiologia). Neuroradiol J 2010; 23:554-73. [PMID: 24148677 DOI: 10.1177/197140091002300505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 09/04/2010] [Indexed: 11/17/2022] Open
Abstract
Infectious diseases of the central nervous system vary in frequency in different locations in America and Europe. What is common in Brazil can be a sporadic presentation in Europe. Cooperative work gathering experiences from neuroradiologists working in various places can be achieved and will help to identify uncommon cases that can present in our daily practice.
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Affiliation(s)
- E Gonzalez-Toledo
- Department of Radiology, Louisiana State University Health Sciences Center; Shreveport; USA -
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Kapsalaki E, Fountas KN. Proton MR spectroscopy of brain abscesses. AJNR Am J Neuroradiol 2010; 31:E67; author reply E68. [PMID: 20581072 DOI: 10.3174/ajnr.a2159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Menei P, Metellus P, Parot-Schinkel E, Loiseau H, Capelle L, Jacquet G, Guyotat J. Biodegradable Carmustine Wafers (Gliadel) Alone or in Combination with Chemoradiotherapy: The French Experience. Ann Surg Oncol 2010; 17:1740-6. [DOI: 10.1245/s10434-010-1081-5] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2009] [Indexed: 11/18/2022]
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Cahill DP, Barker FG, Davis KR, Kalva SP, Sahai I, Frosch MP. Case records of the Massachusetts General Hospital. Case 10-2010. A 37-year-old woman with weakness and a mass in the brain. N Engl J Med 2010; 362:1326-33. [PMID: 20375410 DOI: 10.1056/nejmcpc1000960] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Smith SJ, Ughratdar I, MacArthur DC. Never go to sleep on undrained pus: a retrospective review of surgery for intraparenchymal cerebral abscess. Br J Neurosurg 2009; 23:412-7. [DOI: 10.1080/02688690902887549] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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