29 Questions
Which type of tumors can result from the malignant transformation of pre-existing benign lesions?
Secondary bone tumors
What is a characteristic feature of primary osteosarcoma?
Woven bone histology
Which type of tumors can arise from contiguous spread from soft tissue neoplasms?
Metastatic tumors
In which type of tumors can the transformation range from benign to intermediate malignant?
Paget disease
What is a common symptom associated with primary osteosarcoma?
Pain
Which type of neoplasms can have a primary origin in descending frequency?
Metastatic neoplasms
What should be avoided to prevent tracking hematomas during the biopsy procedure?
Exposing uninvolved compartments
Which type of biopsy is most helpful in diagnosing soft tissue tumors and bony tumors with homogenous cell types?
Fine needle aspiration (FNA)
What imaging techniques can aid in performing a core needle biopsy?
Ultrasonography and CT
What is the size of the tissue core obtained during a core needle biopsy?
10mm by 2mm
Why is meticulous haemostasis important during the biopsy procedure?
To prevent tracking hematomas
What is the typical age range at presentation for osteoid osteoma?
5-25 years
How do radiographs typically appear for osteoid osteoma?
Radiolucent zone surrounded by a halo of increased density
Which treatment option is NOT typically considered for osteoid osteoma?
Chemotherapy
What type of pain relief is typically observed in patients with osteoid osteoma upon taking NSAIDs?
Striking relief
Which of the following statements is true about osteoblastoma?
Patients report significant pain relief with NSAIDs
What is the gender ratio (M:F) for osteoid osteoma?
3:1
What type of bone formation is indicated by a midshaft periosteal reaction with smooth and thick edges?
Benign osteoma
What type of bone formation is associated with onion-skin appearance?
Ewing's sarcoma
Which bone condition is characterized by a sunburst reaction?
Osteosarcoma
What is the biologic activity associated with a smooth periosteum?
Benign process
Which condition presents as a triangle of reactive bone formation at the proximal and distal extremes of the elevated periosteum?
Codman's triangle
Which bone tumor is characterized by midshaft periosteal reaction with smooth + thick edges?
Benign osteoma
What is the male-to-female ratio for solitary osteochondroma?
2:1
What is the shape of osteochondromas?
Mushroom-shaped
In osteochondroma, what is the outer layer of the head composed of?
Hyaline cartilage
What type of ossification process is observed in the newly formed bone portion of osteochondroma?
Endochondral ossification
At what age range do patients with osteochondroma usually seek medical advice?
2nd decade
Why do patients with osteochondroma experience activity-related pain?
Due to irritation of surrounding muscles by the mass
Test your knowledge on the classification and characteristics of musculoskeletal tumors, including polyostotic Paget disease, osteosarcoma, and cartilage-forming tumors. This quiz is adapted for students aspiring to learn about musculoskeletal tumors.
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