Pulmonary Lesions Associated With Visceral Larva Migrans Due to Ascaris suum or Toxocara canis: Imaging of Six Cases
Shuji Sakai1,
Yoshitaka Shida2,
Naoki Takahashi3,
Hidetake Yabuuchi3,
Hiroyasu Soeda3,
Takashi Okafuji3,
Masamitsu Hatakenaka3 and
Hiroshi Honda3
1 Department of Health Sciences, School of Medicine, Kyushu University, 3-1-1,
Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
2 Department of Radiology, International Medical Center of Japan, Tokyo,
Japan.
3 Department of Clincal Radiology, Graduate School of Medical Sciences, Kyushu
University, Fukuoka, Japan.

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Fig. 1A Visceral larva migrans due to Ascaris suum in 57-year-old
woman (case 3). High-resolution CT scan (2-mm collimation) through right
middle lobe shows nodule with halo with ill-defined margin
(arrow).
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Fig. 1B Visceral larva migrans due to Ascaris suum in 57-year-old
woman (case 3). High-resolution CT scan (2-mm collimation) through lingula
obtained 8 days after A shows another nodule with halo with ill-defined
margin (arrow).
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Fig. 1C Visceral larva migrans due to Ascaris suum in 57-year-old
woman (case 3). High-resolution CT scan (2-mm collimation) obtained through
left upper lobe at follow-up shows ground-glass opacity with ill-defined
margin (arrow).
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Fig. 2A Visceral larva migrans due to Ascaris suum in 62-year-old
man (case 4). High-resolution CT scans (2-mm collimation) show nodules with
irregular margins (arrows).
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Fig. 2B Visceral larva migrans due to Ascaris suum in 62-year-old
man (case 4). High-resolution CT scans (2-mm collimation) show nodules with
irregular margins (arrows).
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Fig. 3A Visceral larva migrans due to Toxocara canis in 46-year-old
man (case 6). High-resolution CT scans (2-mm collimation) through left upper
lobe show multiple nodular or wedge-shaped ground-glass opacities
(arrows).
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Fig. 3B Visceral larva migrans due to Toxocara canis in 46-year-old
man (case 6). High-resolution CT scans (2-mm collimation) through left upper
lobe show multiple nodular or wedge-shaped ground-glass opacities
(arrows).
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