Related Experiment Video
Updated: Aug 12, 2026

Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery
Published on: November 5, 2019
Case 325
Pokhraj Prakashchandra Suthar1, Murali Nagarajan1, Sudeep Bhabad1
1From the Department of Diagnostic Radiology and Nuclear Medicine, Rush University Medical Center, 1653 W Congress Pkwy, Chicago, IL 60612 (P.P.S., S.B.); and College of Medicine, University of Oklahoma, Oklahoma City, Okla (M.N.).
History:
A 76-year-old woman with a history of rheumatoid arthritis, Sjögren syndrome, and hypertension presented with a headache, fever, and dysphagia. The patient was taking prednisone and leflunomide to treat rheumatoid arthritis. Her headache was primarily left sided and occasionally radiated to the occipital region. The patient had a high-grade fever spike, with a temperature of 104°F (40°C). Results of a prior lumbar puncture and temporal artery biopsy from an outside hospital were negative. Findings of a neurologic examination were unremarkable. Oropharyngeal examination for dysphagia revealed minimal pharyngeal motility, with pooling of food in the pharynx, which was thought to be due to cranial nerve dysfunction. Laboratory analysis revealed that, except for anemia, complete blood count parameters were within normal limits. C-reactive protein level (49.7 mg/L; reference range, 0.0-8.0 mg/L), erythrocyte sedimentation rate (>140 mm/h with Westergren method; reference range, 0-27 mm/h), and brain-type natriuretic peptide level (145 pg/mL; reference range, 0-100 pg/mL) were elevated. Blood and urine cultures were negative. A lumbar puncture was performed, which revealed cloudy cerebrospinal fluid (CSF), with an elevated CSF protein level (78 mg/dL; reference range, 7.0-35.0 mg/dL) and a low CSF glucose level (37 mg/dL [2.05 mmol/L]; reference range, 45-70 mg/dL [2.50-3.89 mmol/L]); otherwise, CSF encephalopathy, an autoimmune panel, and cultures were negative. MRI and CT scans of the brain with paranasal sinus were performed (Figs 1-3). Nasal endoscopy-guided drainage of the preclival fluid collection was performed, and biopsy of nasopharyngeal tissue was performed. Fluid culture revealed the growth of Candida albicans, as well as Pseudomonas and Enterobacter aerogenes. The patient received fluconazole, ceftriaxone, vancomycin, and metronidazole. Follow-up MRI was performed after 2 weeks (Fig 4).
More Related Videos
04:12Chemical-Induced Skin Carcinogenesis Model Using Dimethylbenz[a]Anthracene and 12-O-Tetradecanoyl Phorbol-13-Acetate DMBA-TPA
Published on: December 19, 2019
09:43Multimodal Study of Murine Cardiovascular Remodeling: Four-Dimensional Ultrasound and Mass Spectrometry Imaging
Published on: January 10, 2025
Related Concept Videos
Standard Precaution
Hand hygiene is the most crucial means to prevent the transmission of disease. Employers are legally required to provide their workers with personal protective equipment (PPE) to minimize exposure or contact with...
Methods of Documentation VI: Case Management Model
For example, a patient with a chronic illness...
Steps in Outbreak Investigation