Diffuse pachymeningeal contrast enhancement is an uncommon imaging finding in dogs and current understanding of its aetiologies in veterinary medicine is limited. A 2-year-old female neutered Pug presented with chronic progressive vestibular signs, facial nerve paralysis, obtundation and episodic decerebellate rigidity. A magnetic resonance imaging study of the head revealed diffuse pachymeningeal thickening and contrast enhancement involving the caudal fossa and falx cerebri. Cerebrospinal fluid analysis revealed marked neutrophilic pleocytosis. Infectious disease testing was negative and a tentative diagnosis of intracranial idiopathic hypertrophic pachymeningitis was made. Immunosuppressive treatment resulted in a short period of clinical improvement. The patient subsequently suffered multiple relapses which failed to respond to alternative immunosuppressive strategies, necessitating euthanasia. Histopathological findings supported a meningeal null cell lymphoma. While rare, neoplastic causes of diffuse pachymeningeal thickening and contrast enhancement should be considered.
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http://dx.doi.org/10.1111/jsap.13810 | DOI Listing |
Tomography
December 2024
Department of Radiology, Nemours Children's Health, 1600 Rockland Rd., Wilmington, DE 19803, USA.
Evaluating altered mental status and suspected meningeal disorders in children often begins with imaging, typically before a lumbar puncture. The challenge is that meningeal enhancement is a common finding across a range of pathologies, making diagnosis complex. This review proposes a categorization of meningeal diseases based on their predominant imaging characteristics.
View Article and Find Full Text PDFAnn Intensive Care
December 2024
Université Paris Cité, INSERM U1137, Paris, F-75018, France.
Background: We aimed to investigate the association of intracranial complications diagnosed on neuroimaging with neurological outcomes of adults with severe pneumococcal meningitis.
Methods: We performed a retrospective multicenter study on consecutive adults diagnosed with pneumococcal meningitis requiring at least 48 h of stay in the intensive care unit (ICU) and undergoing neuroimaging, between 2005 and 2021. All neuroimaging were reanalyzed to look for intracranial complications which were categorized as (1) ischemic lesion, (2) intracranial hemorrhage (3) abscess/empyema, (4) ventriculitis, (5) cerebral venous thrombosis, (6) hydrocephalus, (7) diffuse cerebral oedema.
Rinsho Shinkeigaku
December 2024
Department of Neurology, Ichinomiya-Nishi Hospital.
A 52-year-old woman presented with the subacute onset of pantalgia, fever and consciousness disturbance. MRI revealed widespread symmetrical high-intensity areas along the sulci in both cerebral hemispheres on diffusion-weighted imaging (DWI). Rheumatoid meningitis was suspected based on elevated levels of anti-cyclic citrullinated peptide antibodies (ACPA) in both serum and cerebrospinal fluid (CSF), as well as an elevated ACPA index.
View Article and Find Full Text PDFVet Med Sci
January 2025
Department of Chemistry, Mbarara University of Science and Technology, Mbarara, Uganda.
Dog bites are a source of zoonotic infections to humans, such as pasteurellosis and meningitis. Zoonotic bacterial identification and their antibiotic susceptibility assessment are key towards the successful management of such infections. This study isolated and identified zoonotic bacterial species from the oral cavities of indigenous dogs and also determined their antibiotic susceptibility profile.
View Article and Find Full Text PDFJ Small Anim Pract
December 2024
Hospital Veterinaria del Mar, IVC Evidensia, Barcelona, Spain.
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