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Disseminated tuberculosis.

V K Vijayan1

  • 1VP Chest Institute, University of Delhi.

Journal of the Indian Medical Association
|October 4, 2000
PubMed
Summary
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Disseminated tuberculosis (DT), a severe form of Mycobacterium tuberculosis infection, remains a clinical challenge despite available treatments. Early diagnosis and management are crucial for improving outcomes in this serious condition.

Area of Science:

  • Infectious Diseases
  • Pulmonology
  • Radiology

Background:

  • Disseminated tuberculosis (DT) is a severe manifestation of Mycobacterium tuberculosis infection, accounting for 1.3% of all tuberculosis cases.
  • DT involves widespread hematogenous spread of bacteria, leading to prolonged febrile illness and organomegaly (liver, spleen, lymph nodes).

Purpose of the Study:

  • To summarize the clinical presentation, diagnostic findings, and management of disseminated tuberculosis.
  • To highlight the role of imaging in diagnosing DT, especially when chest radiography is inconclusive.

Main Methods:

  • Review of clinical features, laboratory findings, and radiological characteristics of DT.
  • Discussion of diagnostic modalities including high-resolution computed tomography (HRCT) and pulmonary function tests.
Keywords:
AsiaCase StudiesClinical ResearchDeveloping CountriesDiseasesExaminations And DiagnosesHiv InfectionsIndiaInfectionsLaboratory Examinations And DiagnosesLiver DysfunctionResearch MethodologySouthern AsiaStudiesTuberculosisViral Diseases

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Main Results:

  • DT patients typically present with prolonged fever (2-4 months) and may show organomegaly.
  • Radiological findings, including miliary patterns on HRCT, are key for diagnosis, even with atypical chest X-rays.
  • Hematological findings can include mild anemia and leukemoid reactions, with pancytopenia being rare.

Conclusions:

  • Disseminated tuberculosis presents diagnostic and therapeutic challenges, with an overall mortality rate approaching 20%.
  • Standard tuberculosis chemotherapy is the primary treatment; corticosteroids are indicated for adrenal insufficiency.
  • High-resolution computed tomography is valuable for detecting the miliary pattern of DT.