16 February 2024
: Case report 
A 50-Year-Old Man Presenting with Multiple Bone Lesions and a Diagnosis of Phosphaturic Mesenchymal Tumor of the Femur
Challenging differential diagnosis, Management of emergency care, Rare disease
Dong Ren12ABCDEF*, Katherine Wei3B, Ibe Ifegwu13AEDOI: 10.12659/AJCR.942810
Am J Case Rep 2024; 25:e942810
Figure 3. Immunostain findings of the right femur lesion. (A, B) The tumor cells are positive for SATB2 (nuclear staining), 20× (A) and 40× (B). (C, D) The tumor cells are positive for ERG (nuclear staining), 20× (C), and 40× (D). (E, F) The tumor cells are positive for FGFR1 (cytoplasmic and perinuclear staining), 20× (E), and 40× (F). (G, H) In situ hybridization (ISH) shows the tumor cells are positive for FGF23 (cytoplasmic and nuclear staining), 20× (G), and 40× (H).