Skeletal

Question 1

The skeletal system is made of

Answer 1

bones and cartilage

Question 2

Most skeletal cancers are

Answer 2

metastatic

Question 3

Most skeletal tumors originate in the

Answer 3

mesoderm, primitive mesenchyme, and ectoderm cells

Question 4

skeletal Tumors commonly occur in areas where rapid growth is occurring, such as the

Answer 4

growth plate

Question 5

Most skeletal tumors occur in the distal femur and proximal tibia because they have the

Answer 5

largest growth plates

Question 6

The ___of a long bone is the main shaft

Answer 6

diaphysis

Question 7

The _____are two knob-like portions of the bone at either end

Answer 7

epiphyses

Question 8

The ______is the hard covering on the bone

Answer 8

periosteum

Question 9

The Common sites for osteosarcomas are:

Answer 9

distal femur, proximal tibia, and proximal humerus

Question 10

The Common sites for chondrosarcomas are :

Answer 10

femur, shoulder girdle, and proximal humerus

Question 11

The Common sites for malignant fibrous histiocytomas (MFH) or fibrosarcomas are :

Answer 11

long, tubular bones like the femur or tibia

Question 12

The Common sites for Ewing’s sarcoma are :

Answer 12

lower half of the body in the diaphysis of the bone

Question 13

The Common sites for metastatic tumors from skeletal is :

Answer 13

vertebral bodies, pelvic bones, and ribs

Question 14

_____is the most common clinical presentation of bone tumors

Answer 14

Pain

Question 15

_______is the most common bone tumor

Answer 15

Osteosarcoma

• occur in children teens and young adults

Question 16

Skip metastasis is common for

Answer 16

osteosarcomas

Question 17

etiology for primary bone and soft tissue Is ?

Answer 17

• radiation exposure
• genetic disorders
• viruses
• development abnormalities

Question 18

clinical symptoms for bone and soft tissues

Answer 18

• pain
• mass
• swelling
• fracture
• nerves
• weight loss

Question 19

histology for bone cancers

Answer 19

fibrosarcomas
osteosarcomas
chondrosarcomas
Ewing sarcoma
hemangiosarcoma
chordoma

Question 20

epidomiology for osteosarcoma

Answer 20

• adolescents and young adults

Question 21

epidemiology for chondrosarcoma

Answer 21

• over 50 years old; incidence increases with age
• occur in pelvis vertebrae long bones and shoulders

Question 22

epidemiology for fibrosarcoma/malignant fibrous histiocytoma

Answer 22

very rare - 6-81 yrs most older than 40 age

Question 23

epidemiology for round cell/ Ewing sarcoma

Answer 23

Ewing occurs in childhood; age range 10-30 yrs old

• occur in pelvis chest wall and legs

Question 24

epidemiology for Giant cell

Answer 24

usually benign; shows up in the metaphysis or epiphysis of long bones in young adults

Question 25

multiple myeloma epidimiology

Answer 25

actually a blood malignancy originating in bone marrow: elderly affected the most; solitary - known in plasma