Two cases of osteoblastic bone metastasis from muscle-invasive bladder cancer with discrepancy in response to chemotherapy: problems and limitations of bone biopsy

Takuto Ogasawara1, Toshiaki Tanaka1, Tetsuya Shindo1, Kimio Hashimoto1, Fumimasa Fukuta1, Ko Kobayashi1, Taro Sugawara2, Tadashi Hasegawa2, Naoya Masumori1
1Department of Urology, Sapporo Medical University School of Medicine, South 1, West 16, Chuo-ku, Sapporo 060-8543, Japan
2Department of Surgical Pathology, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543 Japan.

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