PMC2816346_01
Contrast-enhanced CT of the chest shows a well-circumscribed nodule composed of clustered cysts in the left upper lobe.
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F1
Chest CT scan showed a 2-cm, well-circumscribed nodule in the left upper lobe (Fig. 1).
Contrast-enhanced CT of the liver shows a cluster of rim-enhancing, small cysts at the subcapsular area of the segment VII. Note mild enhancement of the hepatic capsule and pleural thickening (arrow) adjacent to the hepatic lesion.
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F2
Liver CT scan at the arterial phase showed a cluster of small, rim-enhancing cysts at the subcapsular area of the segment VII and wedge-shaped enhancement of adjacent parenchyma (Fig. 2).
MRI of the liver demonstrate a low signal intensity lesion on T1-weighted image (A) at the same site as that at CT and a cluster of small bright signal intensities on T2-weighted image (B), suggestive of cystic nature.
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F3
At liver MRI, the lesion appeared low signal intensity on T1-weighted images and bright signal intensity on T2-weighted images, indicating cystic nature (Fig. 3).
Photomicrograph of a specimen obtained by lung biopsy reveals Paragonimus eggs (arrow) of 90x40 microm in size, with chronic granulomatous inflammation (H-E stain, x200).
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F4
The biopsied specimens were obtained as yellowish and black pieces and were histologically diagnosed as chronic granulomatous inflammation with Paragonimus eggs (Fig. 4).
Contrast-enhanced CT of the liver after praziquantel treatment demonstrates complete disappearance of parenchymal lesion in the right lobe.
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F5
At follow-up CT scan 6 months after treatment, the hepatic lesions disappeared completely (Fig. 5).