Pulmonary tuberculosis in infants: radiographic and CT findings

Woo Sun Kim1, Joon-Il Choi, Jung-Eun Cheon

  • 1Department of Radiology, Seoul National University College of Medicine Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea.

Insights

Accurate diagnosis of infant tuberculosis is crucial. Key findings include lymphadenopathy, consolidations, and nodules, with CT scans proving superior to radiography for diagnosis.

Area of Science:

  • Pediatric Radiology
  • Infectious Diseases
  • Pulmonary Medicine

Background:

  • Tuberculosis (TB) complications are common in infants, necessitating accurate diagnostic methods.
  • Radiographic and CT imaging are vital for diagnosing pulmonary TB in this vulnerable population.

Purpose of the Study:

  • To review and summarize the radiographic and CT imaging findings of pulmonary tuberculosis specifically in infants.
  • To identify characteristic radiologic features frequently observed in infants diagnosed with pulmonary TB.

Main Methods:

  • Retrospective analysis of radiologic findings (chest radiography and CT scans) in infants diagnosed with pulmonary tuberculosis.
  • Correlation of imaging findings with clinical data to identify common patterns.

Main Results:

  • Common findings include mediastinal or hilar lymphadenopathy with central necrosis.
  • Air-space consolidations, particularly mass-like consolidations with low-attenuation areas or cavities, are frequently observed.
  • Disseminated pulmonary nodules and airway complications are also prevalent in infants with TB.

Conclusions:

  • Mediastinal/hilar lymphadenopathy and consolidations (especially mass-like with necrosis/cavities) are frequent radiologic signs of infant pulmonary TB.
  • CT imaging offers superior visualization of parenchymal lesions and lymphadenopathy compared to chest radiography in infants.
  • CT is particularly valuable when chest X-rays are inconclusive or when TB complications are suspected.
Abstract

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