Lining of crop was pale and a crumbly texture?

Recently had a necropsy done on a young pullet (about 6-8 mos old) and learned of lymphoid leukosis.

In addition to that primary cause of death, the report showed that the lining of her crop was a pale and "irregular, crumbly texture". Nothing more was said of this and I am very curious as to what this means, what caused it, and if it is something I should be concerned about.

Any info will be much appreciated!