Treatise on USO s.
The Unidentified Shadowy Object first came to light following Roentgen's discovery of the X-Ray.

The Unidentified Shadowy Object in one of his early X-Rays was later correctly identified as a ring.
Well, the creative muse has left the building.
The are four basic densities identifiable on regular X-Rays, air, fat, water, and bone.
There is no way that you are going to get an identification of the USO here, but I can tell that what you are looking at is loss of bone. So, your dentist will have to determine what is causing this.
From the desk of the indentured servant,
Jay
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