PRIMARY PULMONARY TUBERCULOSIS
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Findings:
The examination from February 2002 is normal.However, right hilar and right paratracheal lymphadenopathy has developed in the setting of a positive PPD.
Diagnosis: Primary pulmonary tuberculosis.
Discussion:
Primary tuberculosis is the most common form of pulmonary tuberculosis in infants and children. However, its incidence has increased in adults, accounting for about 25% of all adult tuberculosis cases.The typical radiographic appearance of primary tuberculosis is parenchymal disease, lymphadenopathy, pleural effusion, miliary disease, or lobar or segmental atelectasis. However, approximately 15% of patients will have a normal chest radiograph.Primary pulmonary tuberculosis affects the areas of greatest ventilation, typically the right middle lobe, the lower lobes, and the anterior segment of the upper lobes. Other causes that may simulate tuberculous lymphadenopathy includes metastases and histoplasmosis in endemic areas.Fine, discrete nodular areas of increased opacity on chest radiographs is very suggestive of tuberculosis in the appropriate clinical setting. However, it may also be present in varicella pneumonia, sarcoidosis, histoplasmosis, metastases, pneumoconiosis, or hemosiderosis. At CT, primary tuberculosis typically manifests as air-space consolidation that is well-defined, dense, and homogeneous.
Findings:
The examination from February 2002 is normal.However, right hilar and right paratracheal lymphadenopathy has developed in the setting of a positive PPD.
Diagnosis: Primary pulmonary tuberculosis.
Discussion:
Primary tuberculosis is the most common form of pulmonary tuberculosis in infants and children. However, its incidence has increased in adults, accounting for about 25% of all adult tuberculosis cases.The typical radiographic appearance of primary tuberculosis is parenchymal disease, lymphadenopathy, pleural effusion, miliary disease, or lobar or segmental atelectasis. However, approximately 15% of patients will have a normal chest radiograph.Primary pulmonary tuberculosis affects the areas of greatest ventilation, typically the right middle lobe, the lower lobes, and the anterior segment of the upper lobes. Other causes that may simulate tuberculous lymphadenopathy includes metastases and histoplasmosis in endemic areas.Fine, discrete nodular areas of increased opacity on chest radiographs is very suggestive of tuberculosis in the appropriate clinical setting. However, it may also be present in varicella pneumonia, sarcoidosis, histoplasmosis, metastases, pneumoconiosis, or hemosiderosis. At CT, primary tuberculosis typically manifests as air-space consolidation that is well-defined, dense, and homogeneous.
PRIMARY PULMONARY TUBERCULOSIS
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Reviewed by Sumer Sethi
on
Sunday, October 03, 2004
Rating:
Sumer Sethi
Unique blend of academic excellence and entrepreneurship, heading leading firms in India- Teleradiology Providers, pioneering company providing teleradiology services and DAMS (Delhi Academy of Medical Sciences) Premier test preparation institute in India for MD/MS/MCI preparation. He has also been an invited faculty member at various conferences, including Teleradiology in IRIA 2008 and 2011, Hospital Build Middle East, Congress of the Brain Tumor Radiology in Neuro-oncology Society. Dr. Sethi is Editor-in-Chief of Internet Journal of Radiology. He has a keen interest in Web 2.0 technologies and in maintaining his famous radiology blog, which has been featured in multiple international journals.
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