Case 32 Answer

WetReadRad -

Nice job everyone. A classic Aunt Minnie that came up just 2 weeks ago in normal reading. 

Periosteal and endosteal cortical thickening confined to a single sclerotome. Classic description is “dripping candle wax” appearance

Answer: Melorheostosis. 

reference: https://radiopaedia.org/articles/melorheostosis-1

It is interesting to note that patient’s can be symptomatic as the disease tends to be progressive over time yielding contractures and deformities