True about parosteal osteosarcoma -: (A) Same prognosis as medullary type, (B) Never go to medulla, (C) May involve medulla, (D) All of the above
Answer is C. This question is quite different from previous one.
Though medullary cavity is not involved in parosteal osteosarcoma, some dedifferentiated type (grao sarcoma may involve medullary cavity. -- DD of bone tumor.