hoof rads question re widened HL zone

Maxine McArthur

Question for the gurus: 

In a radiograph, when the HL zone is wider than normal (accompanied by some sinking and thin soles), what is in that widened zone? In a healthy foot, it contains the outer wall, inner wall, and laminae, yes? So in the aforementioned compromised foot, is the extra width actually inflamed laminae or is it like a lamellar wedge that is the same width all the way to the ground? Would this mean that the white line at ground level shows widening even though there is no rotation? 

Maxine and Indy (PPID) and Dangles (PPID)

Canberra, Australia 2010