KMID : 1103720120660020123
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Journal of the Korean Society of Radiology 2012 Volume.66 No. 2 p.123 ~ p.127
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Initial Presentation of Renal Cell Carcinoma as a Metastatic Mass within the Masseter Muscle: A Case Report and Literature Review
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Bae Kyung-Eun
Lee Han-Bee Cho Woo-Ho Kim Jae-Hyung Lee Ji-Hae Kang Mi-Jin Kim Hyun-Jung
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Abstract
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Renal cell carcinoma (RCC) is often concomitant with distant metastasis, and these metastases are the first sign of an otherwise occult primary. Whereas metastasis of RCC to the head and neck has been reported, metastasis to the masseter muscle, which is composed of skeletal muscle, is quite rare. We now report the case of a 66-year-old man who had a past history of pulmonary tuberculosis, with RCC metastasis of a well-defined intensely enhancing hypervascular mass in the masseter muscle as the initial presentation. We present the imaging findings of this case and a literature review about radiologic differential diagnosis of intramasseteric masses.
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KEYWORD
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Metastatic Renal Cell Carcinoma, Masseter Muscle, Masticator Space
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