ODOQuiz - One Day One Question

08 September 2025

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1. What is this Unique Xray Finding?

“bone within bone” appearance
The “bone within bone” appearance is a striking radiologic sign where a smaller, denser bone structure seems embedded within a larger one. It’s often seen in conditions that disrupt normal bone remodeling or growth

2. What are the conditions where this finding can be seen?

Osteopetrosis
Thalassemia
Sickle Cell Disease
Lead poisoning
Growth recovery lines
Congenital syphilis
Hypoparathyroidism