“Abscesses in reptiles are formed by accumulations of trapped white blood cells. This trapping is called encaosulation”…reptiles lack the enzymes that break this down and so the abscesses are solid and contain a cheese-like pus.
https://veterinarypartner.vin.com/default.aspx?pid=19239&id=9003821
https://veterinarypartner.vin.com/default.aspx?pid=19239&id=9003821