What are Osteoid Osteomas?
Introduction

Image 1. Osteoid osteoma of the tibia as seen on xray (courtesy of sciencedirect)

Image 2. Osteoid osteoma of proximal femur on CT (courtesy of radiopaedia.org)
Imaging

Image 3. Osteoid osteoma as seen on MRI (courtesy of researchgate)
Treatment
Conclusion
Osteoid osteomas are one of the most common benign bone tumors found. They have a characteristic presentation of nocturnal pain relieved with NSAIDs. Diagnosis can sometimes be difficult due to their location or small size on radiographs. In the future, treatment options will continue to shift towards minimally invasive options, such as arthroscopic excision.
Read More: https://wikism.org/Osteoid_Osteoma
REFERENCES
2) May, Collin J., et al. “Osteoid Osteoma About the Hip in Children and Adolescents.” The Journal of Bone and Joint Surgery. American Volume, vol. 101, no. 6, Mar. 2019, pp. 486–93. PubMed, doi:10.2106/JBJS.18.00888.