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Case 1. CT findings in the right-superior pulmonary lobe. (A and B) A 1.7x1.4cm nodule was found at the initial diagnosis of pulmonary tuberculosis. (C and D) The nodule was almost absorbed after six months of chemotherapy.
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At that time, the CT showed a 1.7x1.4cm nodule in the right-superior pulmonary lobe (Figure 1A and B). A week before this admission, CT scans revealed a new occupying lesion (3.4cm x 2.3cm) in the right-inferior lobe (Figure 2C and D), whereas the original nodule located in the superior lobe demonstrated improvement (Figure 1C and D).
Case 1. Time course of CT findings in the right-inferior pulmonary lobe. (A and B) There was no obvious mass at the initial diagnosis of pulmonary tuberculosis. (C and D) A new occupying lesion in diameter of 3.4cmx2.3cm appeared after six months of chemotherapy, and its margin was irregular. (E and F) The mass was diminished to 1.5cmx1.3cm seven months after the initial diagnosis. (G and H) The mass was 0.9cmx1.1cm nine months after the initial diagnosis.
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There were no apparent lesions in the right-inferior lobe (Figure 2A and B). A week before this admission, CT scans revealed a new occupying lesion (3.4cm x 2.3cm) in the right-inferior lobe (Figure 2C and D), whereas the original nodule located in the superior lobe demonstrated improvement (Figure 1C and D). The size of new pulmonary mass was reduced to 1.5cm x 1.3cm one month later (Figure 2E and F) and was further reduced to 0.9cm x 1.1cm (Figure 2G and H) three months later.
Case 1. CT-guided percutaneous lung biopsy shows caseous necrosis and granulomatosis surrounded by epithelioid and multinucleated giant cells. Hematoxylin and eosin, x400.
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CT-guided percutaneous lung biopsy demonstrated caseating granulomas (Figure 3).
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Case 2. CT findings in the right middle and inferior pulmonary lobe. (A and B) A 3.9cmx2.9cm lobulated mass without pleural effusion was found was after four months of anti-tuberculosis treatment.
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CT scans revealed a 3.9cm x 2.9cm mass in the right middle and inferior pulmonary lobe with no pleural effusion (Figure 4).
Case 2. CT-guided percutaneous lung biopsy shows plentiful infiltration of epithelioid cells and lymphocytes. Hematoxylin and eosin, x400.
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CT-guided percutaneous lung biopsy showed plentiful infiltration of epithelioid cells and lymphocytes (Figure 5).
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Case 3. Time course of CT findings in the left-superior pulmonary lobe. (A and B) A new occupying lesion in diameter of 1.4cmx0.8cm appeared after six months of chemotherapy with irregular margin and central low density. (C and D) The nodule was diminished to 1.0cmx0.3cm eight months after the initial diagnosis.
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During the follow-up, CT scans showed that the original lesions were absorbed gradually while a new 1.4cm x 0.8cm (Figure 6A and B) nodule appeared in the left-superior lobe six months later. The pulmonary mass was reduced to 1.0cm x0.3cm (Figure 6C and D) two months later.
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Case 4. CT findings in the right-inferior pulmonary lobe. (A and B) A mass measuring 3.3cmx2.0cm was found after three months of anti-tuberculosis therapy. (C and D) The mass was irregular with a cavity.
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In a routine checkup after three months, a mass measuring 3.3cm x 2.0cm in the right-inferior lobe was discovered (Figure 7).
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Case 5. CT findings in the right middle pulmonary lobe. (A and B) A 2.0cmx1.5cm irregular mass appeared after two months of anti-tuberculosis treatment.
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A 2.0cm x 1.5cm new mass appeared in the right middle lobe after two months (Figure 8).