Neoplasia — Flashcards

Flashcard 991: What MSK pathology predisposes to osteosarcoma? _____

Answer: Paget disease of bone

Flashcard 992: Imaging of osteoid osteoma reveals a bony mass, _____ 2 cm, with a radiolucent core (osteoid)

Answer: <

Flashcard 993: Osteoid osteoma is a benign tumor of _____, surrounded by a rim of reactive bone

Answer: osteoblasts (which make osteoid)

Flashcard 994: Osteoblastoma is a benign tumor of osteoblasts, typically _____ 2 cm in size.

Answer: > (Greater than) 2 cm

Extra: Osteoid osteoma is a similar benign tumor of osteoblasts but is characteristically < 2 cm in size and presents with pain that is relieved by aspirin. Osteoblastoma is > 2 cm and the pain is typically not relieved by aspirin.

Flashcard 995: Osteosarcoma is associated with _____ exposure

Answer: radiation

Flashcard 996: _____ is a benign tumor of adipose tissue contained within a fibrous capsule

Answer: Lipoma

Flashcard 997: Ewing sarcoma is associated with an "_____" appearance on X-ray

Answer: onion-skin

Flashcard 998: Which cartilage tumor arises in the medulla of the pelvis or central skeleton? _____

Answer: Chondrosarcoma (malignant)

Flashcard 999: The t(9;22) translocation (BCR-ABL) is also known as the _____ chromosome

Answer: Philadelphia

Flashcard 1000: What bone tumor is characterized by a "sunburst" pattern and Codman triangle on X-ray?_____

Answer: Osteosarcoma