• Abdominal imaging · Sep 2004

    Case Reports

    Gluteal muscular and sciatic nerve metastases in advanced urinary bladder carcinoma: case report.

    • E Nagao, A Nishie, K Yoshimitsu, H Irie, Y Shioyama, S Naito, S Matsuura, and H Honda.
    • Department of Clinical Radiology, Kyushu University Graduate School of Medical Sciences, 3-1-1 Maidashi, Higashi-ku Fukuoka 812-8582, Japan.
    • Abdom Imaging. 2004 Sep 1; 29 (5): 619-22.

    AbstractWe present a case of gluteal muscular and sciatic nerve metastases from urinary bladder carcinoma. T2-weighted magnetic resonance images demonstrated diffuse swelling and an increase in the signal of the right gluteus maximus muscle without destruction of the original arrangement of muscular fibers. Further, remarkable thickening of the right sciatic nerve showing a relatively hypointense signal was detected. Postcontrast T1-weighted images showed strong enhancement of these structures. Fine-needle aspiration biopsy with ultrasonographic guidance confirmed metastatic carcinoma cells in the right gluteal muscle and the sciatic nerve. These radiologic findings may represent a rare pattern of metastasis from urinary bladder carcinoma.

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