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KMID : 1103720200810010135
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Journal of the Korean Society of Radiology
2020 Volume.81 No. 1 p.135 ~ p.146
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Various MRI Findings of Toxocara canis Myelitis
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Park Sun-Young
Park Kyung-Seok
Lee Eu-Gene
Lee Joon-Woo
Bae Yun-Jung
Kang Yu-Suhn
Ahn Joong-Mo
Kang Heung-Sik
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Abstract
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Purpose: To describe magnetic resonance imaging (MRI) findings in 10 cases of Toxocara canis myelitis and to analyze these findings to aid in the diagnosis of this condition.
Materials and Methods: From June 2015 to March 2018, we retrospectively analyzed the electronic medical records and MR images of patients who were diagnosed with Toxocara canis myelitis. The analysis of the MR images was based on a discussion between an experienced spinal radiologist and a radiology resident.
Results: This study classified MRI findings into the following two types. Type 1 was defined as central and diffuse T2 high signal intensity on the axial plane, which was observed in 50% of all cases. All lesions showed avid enhancement, mostly in the posterolateral or posterior region (4 cases, 80%). Type 2 was defined as wedge-shaped or focal T2 high signal intensity in the posterolateral or posterior region and corresponded to the remaining 50% of the cases. In this case, the extent of the lesion was relatively small and contrast enhancement was observed in only one case.
Conclusion: This study revealed that various imaging findings could be observed in cases of Toxocara canis myelitis, and the findings were classified into two types.
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KEYWORD
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Toxocara Canis, Myelitis, Magnetic Resonance Imaging, Spine
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