Parosteal Osteosarcoma: A Benign-Looking Tumour, Amenable to a Variety of Surgical Reconstruction

Figure 2

Histopathological appearance of parosteal osteosarcoma typically shows interconnected bony trabeculae with fibrous stromal tissue (H & E 40x A and 100x B. Rarely, parosteal osteosarcoma could also manifest as dedifferentiated type, which demonstrates irregular bony trabeculae (H & E, 40x C) and cellular foci of high-grade tumour (H & E, 100x D).

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