I don't know if I can go through this again

Trance and Loki both had lumps removed a week ago Saturday. Samples were sent off to pathology.

Trance has hemangiosarcoma (HSA) is a cancer that arises from malignant blood vessel cells and is an uncommon cancer in cats. It is a very aggressive cancer that spreads (metastasis) early and is associated with a poor prognosis. The underlying cause of HSA is unknown. Vet said it was just bad luck, because it's usually in dogs, not cats. And if it is in cats it usually in light furred outdoor cats, and Trance is a dark furred indoor cat.

I haven't been able to completely stop crying. First it was Ziggy, then Keito, and now Trance? Three different types of cancer, each of them 'bad luck'? I feel as if my heart is being crushed.