Successful Superficial Blood Sampling to Localize a Fibroblast Growth Factor-23-Producing Tumor

Junjiro Rikitake; Kenji Ashida; Ayako Nagayama; Yukihiro Inoguchi; Nao Hasuzawa; Masamichi Koganemaru; Tetsuya Hamada; Kanoko Moritaka; Mutsuyuki Demiya; Tomoki Sako; Jun Akiba; Koji Hiraoka; Masatoshi Nomura

doi:10.12659/AJCR.943152

13 April 2024 : Case report Japan

Successful Superficial Blood Sampling to Localize a Fibroblast Growth Factor-23-Producing Tumor

Challenging differential diagnosis, Unusual setting of medical care, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)

Junjiro Rikitake^1ABCDEF, Kenji Ashida

^1ABCDEF*, Ayako Nagayama^1ACDEF, Yukihiro Inoguchi^1CDEF, Nao Hasuzawa^1CDEF, Masamichi Koganemaru^2BCDE, Tetsuya Hamada^3BCDE, Kanoko Moritaka^1BCDE, Mutsuyuki Demiya^1BCDE, Tomoki Sako^1BCDE, Jun Akiba^4BCDE, Koji Hiraoka^3BCDE, Masatoshi Nomura^1ACDEF

DOI: 10.12659/AJCR.943152

Am J Case Rep 2024; 25:e943152

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Figure 6. Pathological findings. (A, B) Hematoxylin and eosin staining. The proliferation of spindle-shaped cells can be observed; however, no signs of malignancy were detected: (A) low magnification; and (B) high magnification. (C, D) Immunostaining with an anti-FGF-23 antibody (AdipoGen Life Sciences, CA, USA) shows scattered FGF-23-positive cells: (C) low magnification; and (D) high magnification. FGF-23 – fibroblast growth factor-23.

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Successful Superficial Blood Sampling to Localize a Fibroblast Growth Factor-23-Producing Tumor

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