Fig. 12From: Bizarre parosteal osteochondromatous proliferation: an educational reviewPathological features of BPOP. Low power view of disorganized bone and cartilaginous cap (a). Characteristic basophilic stroma called “blue bone” (b). Myxoid areas with smaller spindle shaped chondrocytes (c). Atypical chondrocytes with hyperchromatic and enlarged nuclei (d)Back to article page