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13 April 2024: Articles

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 A , Kenji Ashida A* , Ayako Nagayama A , Yukihiro Inoguchi C , Nao Hasuzawa C , Masamichi Koganemaru B , Tetsuya Hamada B , Kanoko Moritaka B , Mutsuyuki Demiya B , Tomoki Sako B , Jun Akiba B , Koji Hiraoka B , Masatoshi Nomura A

DOI: 10.12659/AJCR.943152

Am J Case Rep 2024; 25:e943152

Table 1. Laboratory data on admission.

ParametersValuesReference range
  Protein, mg/dLNegative
  Total protein, g/dL6.66.6–8.1
  Albumin, g/dL4.1–5.1
  BUN, mg/dL168–20
  Cre, mg/dL0.870.65–1.07
  Uric acid, mg/dL5.63.7–7.0
  Sodium, mmol/L141138–145
  Potassium, mmol/L4.23.6–4.8
  Chloride, mmol/L106101–108
  FPG, mg/dL9170–109
  CRP, mg/dL
  Intact-PTH, pg/mL40.910.0–65.0
  Intact FGF-23, pg/mL19.9–52.9
  1,25 (OH) D, pg/mL24.220.0–60.0
  25 (OH) D, ng/mL≥30
  Total P1NP, ng/mL18.1–74.1
  Occult bloodNegative
  AST, IU/L2413–30
  ALT, IU/L2310–30
  ALP, U/L38–113
  CK, IU/L8659–248
  LDL-cholesterol, mg/dL11665–139
  Calcium, mg/dL8.78.8–10.1
  Phosphate, mg/dL2.7–4.6
  HbA1c (NGSP), %5.84.9–6.0
  TSH, μU/mL0.8700.500–5.000
  Free thyroxine, ng/dL1.160.93–1.70
  Free thyronine, pg/mL2.92.3–4.0
  TRACP-5b, mU/dL170–590
* Reference range that is supposed to be sufficient with vitamin D. CK – creatine kinase; Cre – creatinine; DEX – dexamethasone; FPG – fasting plasma glucose; HbA1c – hemoglobin A1c; CRP – C-reactive protein; P1NP – procollagen type 1 N-terminal propeptide; TRACP-5b – tartrate-resistant acid phosphatase 5b; TSH – thyroid-stimulating hormone; PTH – parathyroid hormone; BUN – blood urea nitrogen; AST – aspartate aminotransferase; ALT – alanine aminotransferase; LDL – low-density lipoprotein.

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923