Osteoid Osteoma: A Unique Presentation in a Child's Lesser Toe

Area of Science:

• Orthopedic Oncology
• Pediatric Radiology
• Skeletal Pathology

Background:

• Osteoid osteoma is a rare, benign skeletal tumor characterized by nocturnal pain, often relieved by salicylates.
• Diagnosis is typically straightforward in common locations like the femur and tibia but can be challenging in atypical sites such as the spine, pelvis, hands, or feet.

Observation:

• A case report details an 11-year-old boy with a 10-month history of symptomatic, painful toe without a clear diagnosis.
• Clinical presentation included nocturnal pain and swelling, prompting further investigation.

Findings:

• Imaging studies including X-ray, MRI, and scintigraphy, combined with the characteristic nocturnal pain, suggested osteoid osteoma.
• Histological examination after excisional biopsy confirmed the diagnosis of osteoid osteoma.

Implications:

• Osteoid osteoma should be considered in the differential diagnosis of nocturnal pain in children, even when presenting in unusual locations.
• Increased awareness can lead to earlier diagnosis and prompt, effective treatment, improving patient outcomes.