W/L Ch 27 Bone, Cartilage and STS Quiz Flashcards
Which of the following is an acceptable radiation therapy treatment technique for soft tissue sarcomas (STS)?
I. External beam
II. Brachytherapy
III. Intraoperative
a. I and II
b. I and III
c. II and III
d. I, II, and III
d. I, II, and III
Where should the upper and lower field edges be placed for the treatment of metastatic spine cancer?
a. Mid-vertebral body
b. Medial aspect of the vertebral body
c. Superior aspect of the vertebral body
d. Intervertebral space
d. Intervertebral space
In which anatomical location are primary bone lesions most common?
a. Spine
b. Upper extremity
c. Lower extremity
d. Trunk
c. Lower extremity
In which anatomical location are metastatic bone lesions most common?
a. Spine
b. Upper extremity
c. Lower extremity
d. Trunk
a. Spine
In which anatomical location are STSs most common?
a. Head and neck
b. Upper extremity
c. Lower extremity
d. Trunk
b. Upper extremity
What is the most important prognostic factor for osteosarcoma?
a. Site of primary tumor
b. Age of patient at diagnosis
c. Presence of metastatic disease
d. Performance status
c. Presence of metastatic disease
What type of bone marrow is contained in the diaphysis of long bones?
a. Red
b. White
c. Blue
d. Yellow
d. Yellow
During which of the following time frames is the incidence rate of primary bone cancer highest?
a. Infancy
b. Adolescence
c. Adulthood
d. Elderly
c. Adulthood
What is the most common form of primary bone cancer?
a. Osteosarcoma
b. Chondrosarcoma
c. Fibrosarcoma
d. Chordoma
a. Osteosarcoma
What is the most common site of metastasis from a primary bone cancer?
a. Brain
b. Bowel
c. Lung
d. Bone
c. Lung
Most STSs generally spread through _________________.
I. the lymphatic system
II. direct invasion and extension
III. hematogenous spread
a. I and II
b. I and III
c. II and III
d. I, II, and III
c. II and III
Which of the following is the most common metastatic site in STS?
a. Lung
b. Liver
c. Brain
d. Bone
a. Lung
It is important when treating an extremity for STS to have a strip of unirradiated tissue near the treatment volume to _______________________.
I. maintain some lymphatic function
II. avoid increased fracture possibilities
III. avoid circumferential fibrosis
a. I and II
b. I and III
c. II and III
d. I, II, and III
b. I and III
Overall, STS requires which dose of radiation to achieve local control and long-term survival?
a. Low
b. Medium
c. High
c. High
When used with radiation therapy, which of the following reduces the loss of function and improves overall control?
a. Intralesional resection
b. Radical resection
c. Amputation
d. Limb-sparing surgery
d. Limb-sparing surgery
Preoperative radiation therapy for STS is performed to _________________.
I. kill the reactive rim of tumor cells before they are cut into
II. decrease the risk of implantation
III. attempt to preserve as much normal function as possible
a. I and II
b. I and III
c. II and III
d. I, II, and III
b. I and III
All except which of the following are examples of primary bone tumors?
a. Malignant histiocytoma
b. Rhabdomyosarcoma
c. Osteosarcoma
d. Multiple myeloma
b. Rhabdomyosarcoma
Rhabdomyosarcomas are a form of STS, not primary bone tumor.
Which of the following has the highest incidence of bone tumors?
a. Ewing sarcoma
b. Chondrosarcoma
c. Metastatic bone lesions
d. Multiple myeloma
c. Metastatic bone lesions
Which of the following is the most common presenting symptom of patients with bone tumors?
a. Elevated blood count
b. Decreased blood count
c. Pathologic fracture
d. Pain
d. Pain
The main shaft of a typical long bone is termed the __________.
a. periosteum
b. diaphysis
c. epiphysis
d. shaftosis
b. diaphysis
Bone scans are used to evaluate which of the following?
a. Histology of the specimen
b. Spread of metastatic disease
c. Extent of soft tissue involvement
d. None of the above
b. Spread of metastatic disease
Primary treatment for osteogenic sarcoma involves which of the following?
I. Radiation therapy
II. Surgery
III. Chemotherapy
a. I and II
b. I and III
c. II and III
d. I, II, and III
c. II and III
Osteosarcomas are radioresistant. Therefore, surgery and chemotherapy are used as the primary treatment options for this disease.
Treatment for malignant fibrous histiocytoma involves which of the following? I. Radiation therapy II. Surgery III. Chemotherapy a. I and II b. I and III c. II and III d. I, II, and III
d. I, II, and III
Treatment for multiple myeloma involves which of the following?
I. Radiation therapy
II. Surgery
III. Chemotherapy
a. I and II
b. I and III
c. II and III
d. I, II, and III
b. I and III
Which of the following is the most common primary site that leads to bone metastasis?
a. Breast
b. Prostate
c. Kidney
d. Lung
d. Lung
The role of the radiation therapist in the treatment of patients with bone tumors includes which of the following? I. Education II. Communication III. Assessment IV. Monitoring medical equipment
a. I, II, and III
b. I, III, and IV
c. II, III, and IV
d. I, II, III, and IV
d. I, II, III, and IV
Primary bone tumors comprise approximately ___ of all tumors.
a. 1%
b. 5%
c. 10%
d. 15%
a. 1%
Which of the following primary bone tumors is the most radiosensitive?
a. Osteosarcoma
b. Chondrosarcoma
c. Fibrosarcoma
d. Ewing’s sarcoma
d. Ewing’s sarcoma
The most common symptom associated with STSs is __________________.
a. lymphadenopathy
b. palpable mass
c. leukopenia
d. pain
b. palpable mass
Which of the following bone malignancies has the highest incidence?
a. Osteosarcoma
b. Chondrosarcoma
c. Ewing’s sarcoma
d. Metastatic bone disease
d. Metastatic bone disease
