Cassi meets Dr. Hershey

It was a long visit for a little information, but the vet was very kind and informative.  She sat on the floor with Cassi and felt her lymph nodes.  Her examination did not find anything of concern.  From the notes she gave me:

A c-kit immumohistochemistry was requested to determine whether Cassi's mast cell tumor is expected to behave more aggressively. A c-kit staining pattern is reported as a I, II, or III.  The staining pattern 1 have a great long term prognosis with surgical removal and no additional therapy.  Staining patterns 2 and 3 have a 25% and 40% chance, respectively, of recurrence and/or metastases and additional therapy is warranted.

The lab has Cassi's mast cell tumor and I should have the results in about two weeks.