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eISSN 2951-0805
    J Korean Soc Radiol. 2010 Mar;62(3):277-281. Korean.
    Published online Mar 31, 2010.
    https://doi.org/10.3348/jksr.2010.62.3.277
    Copyright © 2010 The Korean Society of Radiology
    Original Article

    Case Report of Arm Kimura Disease with Atypical MR Finding

    Hee Young Kim, M.D., Baek Hyun Kim, M.D., Ye Lim Kim, M.D.,2 Young Hen Lee, M.D., Suk-Ju Hong, M.D.,2 Chang Ho Kang, M.D.,3 Guen Young Lee, M.D., Bo Kyoung Seo, M.D. and Ju-Han Lee, M.D.4
      • 1Department of Radiology, Korea University Ansan Hospital, Korea University College of Medicine, Korea.
      • 2Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Korea.
      • 3Department of Radiology, Korea University Anam Hospital, Korea University College of Medicine, Korea.
      • 4Department of Pathology, Korea University Ansan Hospital, Korea University College of Medicine, Korea.
    • Address reprint requests to: Baek Hyun Kim, M.D., Department of Radiology, Korea University Ansan Hospital Gojan 1-dong, Danwon-gu, Ansan-si, Gyeonggi-do 425-707, Korea. Tel. 82-31-412-5227, Fax. 82-31-412-5224, Email: kimbaekh@hanmail.net
    Received July 20, 2009; Accepted October 06, 2009.

    Abstract

    Kimura disease is a rare chronic inflammatory condition of unknown origin that occurs mainly in young Asian male patients. Kimura disease is characterized by painless subcutaneous swelling and lymphadenopathy of the head and neck, associated with peripheral blood eosinophilia and increased serum IgE. According to some previous reports about a rare form of Kimura disease of the upper arm, soft tissue masses of the subcutaneous fat layer were demonstrated in the medial trochlear area, which showed strong and homogenous enhancement with marked perilesional edema and fat infiltrations on enhanced magnetic resonance imaging (MRI). In this case report, we introduce a case of Kimura disease of the upper arm in a 13-year male patient, which was seen as a well-marginated soft tissue mass without perilesional edema or fatty infiltrations on MRI. In this case study, we discuss the characteristics of the clinical and pathologic findings associated with unusual MRI findings, and report the Kimura disease with a different pathophysiology by anti-inflammatory drugs.

    Keywords
    Angiolymphoid hyperplasia with eosinophilia; Arm; Magnetic Resonance Imaging

    Figures

    Fig. 1
    A. A well-marginated, elliptical soft tissue mass was identified in medial epitrochlear area of left upper arm, which showed low echogenicity with an echogenic hilum on US. It measured about 5.5×1.5×1.3 cm in size.
    B. On color Doppler US, increased vascularity was seen along hilum of lymph node.

    Fig. 2
    A. Axial fat supressed T2-weighted (TR/TE, 3389/96) spin-echo MR image showed well-defined homogeneous high signal intensity mass located in medial epitrochlear area of left upper arm.
    B. Axial T1-weighted image (TR/TE, 459/12) showed good demarcation around the mass.

    C. A well-defined enlongated mass, located in medial epitrochlear area of left upper arm, showed homogeneous high signal intensity on coronal fat-supressed T2-weighted image (TR/TE, 3389/96) with branching low signal intensity along hilum. There was neither perilesional edema nor fat infiltration.

    D. After intravenous gadolinium enhancement, the mass was enhanced strongly and homogeneously. There was no evidence of perilesional edema or fat infiltration.

    Fig. 3
    A. On microscopic evaluation, there were lymphoid follicular hyperplasia and vascular proliferations with extensive infiltration of mature eosinophils in the mass, which was compatible with microscopic findings of Kimura disease (H & E, ×200).
    B. There was a focal, localized eosinophilic infiltration around the outer margin of the mass measured about 1×1 mm (arrows, H & E, ×100).

    References

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    MeSH Terms
    Angiolymphoid Hyperplasia with Eosinophilia
    Arm
    Asians
    Edema
    Eosinophilia
    Head
    Humans
    Immunoglobulin E
    Lymphatic Diseases
    Magnetic Resonance Imaging
    Male
    Neck
    Subcutaneous Fat
    Metrics
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