Neoplastic Bone Disease

Question 1

State the differences between the Xray results of benign and malignant bone disease(NPR)(214)

Answer 1

Question 2

For four different types of malignant bone tumours: state the age the they usually occur and list the bones they usually affect. Describe their histology and X-ray appearance(NPR)(214)

Answer 2

The bones of the human skeleton are divided into two groups. The appendicular skeleton includes all the bones that form the upper and lower limbs, and the shoulder and pelvic girdles. The axial skeleton includes all the bones along the body’s long axis.

Question 3

For the seven different types of benign bone tumours: state the age the they usually occur and list the bones they usually affect. Describe their histology and X-ray appearance, and their special features(NPR)(215)

Answer 3

A haemangioma is a collection of small blood vessels that form a lump under the skin. They are sometimes called ‘strawberry marks’ because the surface of a haemangioma may look a bit like the surface of a strawberry.

An endochondroma is a cartilaginous proliferation WITHIN the bone
- The majority occurs in the hands with some in the feet- less in the ends of the long
bones
o May be worried about malignancy due to pathological fractures
o X-Ray: ‘popcorn calcification’
- Histology
Pathology

Pathology
o There is a proliferation of cartilage that is well-circumscribed
o Therefore a limited excision is needed