Tuberculous Meningitis Joseph Junewick, MD FACR

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1 Tuberculous Meningitis Joseph Junewick, MD FACR 08/11/2010 History 14 month old with fever and increasing lethargy. Diagnosis Tuberculous Meningitis Additional Clinical Grandmother with active tuberculosis. Discussion Tuberculosis can affect virtually any organ system in the body and can be devastating if left untreated. Most tuberculous infections of the central nervous system are a result of hematogenous spread. Intracranial tuberculosis results in two related pathologic processes: tuberculous meningitis and intracranial tuberculomas. Tuberculous meningitis is a more frequent manifestation of neurotuberculosis than is brain tuberculoma and is more commonly seen in children. Meningeal involvement manifests as homogeneous enhancement most pronounced in the basal cisterns. There may be involvement of the meninges within the sulci over the cerebral convexities and in the sylvian fissures. Abnormal enhancement of the choroid plexus and ependymal lining of the ventricular system may rarely be seen. Sequelae of tuberculous meningitis include focal areas of atrophy secondary to infarcts and hydrocephalus and, rarely, syringomyelia or syringobulbia. The differential diagnosis for tuberculous meningitis includes other infectious agents (nontuberculous bacteria, viruses, fungi, parasites), noninfectious inflammatory disease affecting the leptomeninges (rheumatoid disease, sarcoidosis), and primary or secondary neoplastic involvement of meningeal surfaces (meningiomatosis, neoplastic meningitis from a peripheral tumor source, cerebrospinal fluid seeding from a primary tumor of the central nervous system). Findings CT-Basal leptomeningeal enhancement with mild ventriculomegaly. MR-Basal leptomeningeal enhancement with mild ventriculomegaly. Reference Andronikou S, Wilmshurst J, Hatherill M, VanToorn R. Distribution of brain infarction in children with tuberculous meningitis and correlation with outcome score at 6 months. Pediatr Radiol (2006); 36: Harisinghani MG, McCloud TC, Shepard JO, Ko JP et al. Tuberculosis from Head to Toe. Radiographics (2000); 20:

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11 Sponsored By Disclaimer This teaching site is partially funded by an educational grant from GE Healthcare and Advanced Radiology Services, PC. The material on this site is independently controlled by Advanced Radiology Services, PC, and GE Healthcare and Spectrum Health have no influence over the content of this site Content Download Agreement The cases and images on this website are owned by Spectrum Health. Permission is granted (for nonprofit educational purposes) to download and print materials to distribute for the purpose of facilitating the education of health professionals. The authors retain all rights to the material and users are requested to acknowledge the source of the material. Site Disclaimer This site is developed to reach healthcare professionals and medical students. Nothing this site should be considered medical advice. Only your own doctor can help you make decisions about your medical care. If you have a specific medical question or are seeking medical care, please contact your physician. The information in this website is provided for general medical education purposes only and is not meant to substitute for the independent medical judgment of a physician relative to diagnostic and treatment options of a specific medical condition. The viewpoints expressed in these cases are those of the authors. They do not represent an endorsement. In no event will Advanced Radiology Associates, PC, Spectrum Health Hospitals (Helen Devos Children's Hospital) or GE Healthcare be liable for any decision made or action taken in reliance upon the information provided through this website.

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