Musculoskeletal Tumor Classification Quiz

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Questions and Answers

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?

<p>Paget disease (B)</p> Signup and view all the answers

What is a common symptom associated with primary osteosarcoma?

<p>Pain (A)</p> Signup and view all the answers

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

<p>Metastatic neoplasms (A)</p> Signup and view all the answers

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

<p>Exposing uninvolved compartments (A)</p> 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?

<p>Fine needle aspiration (FNA) (D)</p> Signup and view all the answers

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

<p>Ultrasonography and CT (D)</p> Signup and view all the answers

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

<p>10mm by 2mm (C)</p> Signup and view all the answers

Why is meticulous haemostasis important during the biopsy procedure?

<p>To prevent tracking hematomas (D)</p> Signup and view all the answers

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

<p>5-25 years (B)</p> Signup and view all the answers

How do radiographs typically appear for osteoid osteoma?

<p>Radiolucent zone surrounded by a halo of increased density (B)</p> Signup and view all the answers

Which treatment option is NOT typically considered for osteoid osteoma?

<p>Chemotherapy (A)</p> Signup and view all the answers

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

<p>Striking relief (A)</p> Signup and view all the answers

Which of the following statements is true about osteoblastoma?

<p>Patients report significant pain relief with NSAIDs (C)</p> Signup and view all the answers

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

<p>3:1 (B)</p> Signup and view all the answers

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

<p>Benign osteoma (C)</p> Signup and view all the answers

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

<p>Ewing's sarcoma (C)</p> Signup and view all the answers

Which bone condition is characterized by a sunburst reaction?

<p>Osteosarcoma (C)</p> Signup and view all the answers

What is the biologic activity associated with a smooth periosteum?

<p>Benign process (C)</p> 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?

<p>Codman's triangle (C)</p> Signup and view all the answers

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

<p>Benign osteoma (A)</p> Signup and view all the answers

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

<p>2:1 (A)</p> Signup and view all the answers

What is the shape of osteochondromas?

<p>Mushroom-shaped (D)</p> Signup and view all the answers

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

<p>Hyaline cartilage (B)</p> Signup and view all the answers

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

<p>Endochondral ossification (C)</p> Signup and view all the answers

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

<p>2nd decade (C)</p> Signup and view all the answers

Why do patients with osteochondroma experience activity-related pain?

<p>Due to irritation of surrounding muscles by the mass (A)</p> Signup and view all the answers

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