Aclient is informed that he has a benign bone tumor but that this type of tumor that may become malignant. the nurse knows that this is characteristic of which type of tumor

The characteristics point to: Osteoclastoma
Osteoclastoma is a type of tumor that arises from the bone tissue (most commonly found in the bone that experiences a lot of friction). Osteoclastoma Formed about 1/5 of the total bone tumor cases and if it left untreated, it will start to destroy the bones composition over a period of time.

Unlike  ct scans, which use x-rays,  mri scans  use powerful magnetic fields and radio frequency pulses to produce detailed pictures of organs, soft tissues, bone and other internal body structures.  differences between  normal and abnormal tissue is often clearer on an  mri  image than a  ct.you can see more with a mri scan. for example on an mri you can see internal bleeding.