Fig. 5From: Bizarre parosteal osteochondromatous proliferation co-occurring with a metatarsal fatigue fracture: a case reportUnder 100X magnification microscope observation, bone, cartilage, and fibrous tissue were mixed and irregularly distributed. Under 200X magnification observation, bone trabeculae were irregularly distributed and surrounded by osteoblasts (no atypia). Massive and patchy hyaline cartilage was observed, with the presence of the characteristic ‘Blue Bone’ and mildly atypical chondrocytes; Fibrous tissue, without any atypia, was located between bone trabeculae and cartilageBack to article page