Musculoskeletal Tumor Classification Quiz

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Which type of tumors can result from the malignant transformation of pre-existing benign lesions?

Secondary bone tumors (correct)

Paget disease

Metastatic neoplasms

Primary osteosarcoma

What is a characteristic feature of primary osteosarcoma?

Woven bone histology (correct)

Benign appearance on histology

Pain as a symptom

Metastasis to soft tissues

Which type of tumors can arise from contiguous spread from soft tissue neoplasms?

Paget disease

Primary osteosarcoma

Benign bone lesions

Metastatic tumors (correct)

In which type of tumors can the transformation range from benign to intermediate malignant?

Paget disease Signup and view all the answers

What is a common symptom associated with primary osteosarcoma?

Pain Signup and view all the answers

Which type of neoplasms can have a primary origin in descending frequency?

Metastatic neoplasms Signup and view all the answers

What should be avoided to prevent tracking hematomas during the biopsy procedure?

Exposing uninvolved compartments Signup and view all the answers

Which type of biopsy is most helpful in diagnosing soft tissue tumors and bony tumors with homogenous cell types?

Fine needle aspiration (FNA) Signup and view all the answers

What imaging techniques can aid in performing a core needle biopsy?

Ultrasonography and CT Signup and view all the answers

What is the size of the tissue core obtained during a core needle biopsy?

10mm by 2mm Signup and view all the answers

Why is meticulous haemostasis important during the biopsy procedure?

To prevent tracking hematomas Signup and view all the answers

What is the typical age range at presentation for osteoid osteoma?

5-25 years Signup and view all the answers

How do radiographs typically appear for osteoid osteoma?

Radiolucent zone surrounded by a halo of increased density Signup and view all the answers

Which treatment option is NOT typically considered for osteoid osteoma?

Chemotherapy Signup and view all the answers

What type of pain relief is typically observed in patients with osteoid osteoma upon taking NSAIDs?

Striking relief Signup and view all the answers

Which of the following statements is true about osteoblastoma?

Patients report significant pain relief with NSAIDs Signup and view all the answers

What is the gender ratio (M:F) for osteoid osteoma?

3:1 Signup and view all the answers

What type of bone formation is indicated by a midshaft periosteal reaction with smooth and thick edges?

Benign osteoma Signup and view all the answers

What type of bone formation is associated with onion-skin appearance?

Ewing's sarcoma Signup and view all the answers

Which bone condition is characterized by a sunburst reaction?

Osteosarcoma Signup and view all the answers

What is the biologic activity associated with a smooth periosteum?

Benign process Signup and view all the answers

Which condition presents as a triangle of reactive bone formation at the proximal and distal extremes of the elevated periosteum?

Codman's triangle Signup and view all the answers

Which bone tumor is characterized by midshaft periosteal reaction with smooth + thick edges?

Benign osteoma Signup and view all the answers

What is the male-to-female ratio for solitary osteochondroma?

2:1 Signup and view all the answers

What is the shape of osteochondromas?

Mushroom-shaped Signup and view all the answers

In osteochondroma, what is the outer layer of the head composed of?

Hyaline cartilage Signup and view all the answers

What type of ossification process is observed in the newly formed bone portion of osteochondroma?

Endochondral ossification Signup and view all the answers

At what age range do patients with osteochondroma usually seek medical advice?

2nd decade Signup and view all the answers

Why do patients with osteochondroma experience activity-related pain?

Due to irritation of surrounding muscles by the mass Signup and view all the answers