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Updated: Nov 27, 2025

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Diagnosing Pulmonary Tuberculosis with the Xpert MTB/RIF Test
Published on: April 9, 2012
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Diagnosis of cutaneous tuberculosis (lymph node scrofuloderma) using the Xpert MTB/RIF® method.
Lilian Lemos Costa1, John Verrinder Veasey1
1Dermatology Clinic, Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil.
Anais Brasileiros De Dermatologia
|December 6, 2020
Summary
Diagnosing cutaneous tuberculosis is challenging. The Xpert MTB/RIF test enables rapid identification of Mycobacterium tuberculosis DNA and rifampicin resistance, facilitating early treatment for skin TB cases like scrofuloderma.
Area of Science:
- Infectious Diseases
- Dermatology
- Microbiology
Background:
- Cutaneous tuberculosis (TB) presents diagnostic challenges due to low sensitivity and specificity of traditional methods.
- Pulmonary TB diagnostics are generally more sensitive than those for skin manifestations.
- Early and accurate diagnosis is crucial for effective management of cutaneous TB.
Keywords:
DiagnosisDiagnostic toolsMycobacterium tuberculosisPolymerase chain reactionRifampicinTuberculosis, cutaneousMore Related Videos
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