Pulmonary paragonimiasis
Updates to Article Attributes
Pulmonary paragonimiasis is a food-borne parasitic disease caused by the lung fluke (trematode) Paragonimus westermani. It is endemic in southeast asia southeast Asia, the the far east, and is also relatively common latin americaLatin America and Africa 1-2. The disease affect can both the lung and pleura 3 although lung parechymalparenchymal involvement is thought to be commoner than plerualpleural involvement 2.
Radiographic features
CT chest: HRCT
It usually usually manifests as a poorly marginated subpleural or subfissural nodule of about 2 cm in diameter that frequently contains a necrotic low-attenuation area 2. The constellation of focal pleural thickening and subpleural linear opacities leading to a necrotic peripheral pulmonary nodule is another frequent CT finding.
There are also a myriad of other associated non specificnonspecific features. These can vary with the stage of disease.
Early findings are are thought to be caused by the migration of juvenile worms and include:
Later findings are thought to caused by worm cysts and include:
Differential diagnosis
Imaging features can sometimes mimic that of lung cancer or pulmonary tuberculosis 2.
-<p><strong>Pulmonary paragonimiasis</strong> is a food-borne parasitic disease caused by the lung fluke (trematode) <em>Paragonimus westermani.</em> It is endemic in southeast asia, the the far east, and is also relatively common latin america and Africa <sup>1-2</sup>. The disease affect can both the lung and pleura <sup>3</sup> although lung parechymal involvement is thought to be commoner than plerual involvement <sup>2</sup>.</p><h4>Radiographic features</h4><h5>CT chest: HRCT</h5><p>It usually manifests as a poorly marginated subpleural or subfissural nodule of about 2 cm in diameter that frequently contains a necrotic low-attenuation area <sup>2</sup>. The constellation of focal pleural thickening and subpleural linear opacities leading to a necrotic peripheral pulmonary nodule is another frequent CT finding.</p><p>There also a myriad of other associated non specific features. These can vary with the stage of disease.</p><p>Early findings are thought to be caused by the migration of juvenile worms and include:</p><ul>- +<p><strong>Pulmonary paragonimiasis</strong> is a food-borne parasitic disease caused by the lung fluke (trematode) <em>Paragonimus westermani.</em> It is endemic in southeast Asia, the far east, and is also relatively common Latin America and Africa <sup>1-2</sup>. The disease affect can both the lung and pleura <sup>3</sup> although lung parenchymal involvement is thought to be commoner than pleural involvement <sup>2</sup>.</p><h4>Radiographic features</h4><h5>CT chest: HRCT</h5><p>It usually manifests as a poorly marginated subpleural or subfissural nodule of about 2 cm in diameter that frequently contains a necrotic low-attenuation area <sup>2</sup>. The constellation of focal pleural thickening and subpleural linear opacities leading to a necrotic peripheral pulmonary nodule is another frequent CT finding.</p><p>There are also a myriad of other associated nonspecific features. These can vary with the stage of disease.</p><p>Early findings are thought to be caused by the migration of juvenile worms and include:</p><ul>
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