Fig. 5

The histological features of phosphaturic mesenchymal tumor (PMT). Low-magnification (A, 100×) and high magnification (B, 200×) images of a PMT. Highly vascular proliferation (indicated by the white arrow) and spindle-shaped cells (indicated by the black arrow) form most of the background cells and are embedded in a distinctive smudgy matrix. The osteoclast-like multinucleated giant cells (indicated by the red arrow) and “grungy” calcification are scattered in the tumor (indicated by the yellow arrow)