Orthonotes
Orthonotes
by the.bonestories
v3.0 Fusion
v3.0 Fusion
tumor topic hub

Osteoid Osteoma — Night Pain & RFA

Benign osteoblastic tumor

Overview

Topic summary

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Benign osteoblastic tumor <2 cm nidus, surrounded by reactive sclerosis. Classical symptom: severe night pain relieved by NSAIDs. Common sites: femur, tibia diaphysis; spine (posterior elements) may cause painful scoliosis. X‑ray: radiolucent nidus with central calcification, cortical thickening. Treatment: CT‑guided radiofrequency ablation is gold standard; surgical excision if RFA not feasible.
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MCQs

High-yield practice questions

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Question 1

What is the hallmark symptom of osteoid osteoma?

Question 2

Which imaging modality is considered the gold standard for identifying osteoid osteoma?

Question 3

What is the typical size of the nidus in osteoid osteoma?

Question 4

In which location is osteoid osteoma most commonly found?

Question 5

What type of treatment is considered the first-line management for symptomatic osteoid osteoma?

Question 6

What is the characteristic appearance of osteoid osteoma on a plain X-ray?

Question 7

Which age group is most commonly affected by osteoid osteoma?

Question 8

What is the typical male-to-female ratio for osteoid osteoma occurrence?

Question 9

Which of the following best explains the mechanism of pain in osteoid osteoma?

Question 10

What can a spinal osteoid osteoma present with in young patients?