Investigate symptoms of lymphoma
Berry seemed to have a cold. Because he was new to us, we weren’t sure what was "normal" for him. The sneezing, red eyes and runny nose seemed as though they could have been caused by the winter weather. And we attributed Berry’s slight weight loss to the fact he was going to obedience class and we had reduced his regular food to allow for training treats. And I thought he was tugging less on his lead because he was "settling down" -- learning in obedience class. I almost cancelled the vet appointment, thinking it was silly to bring a dog with a cold to a major research facility like the Veterinary Hospital of the University of Pennsylvania (VHUP). But my decision to check out these minor symptoms saved Berry.
Most symptoms of lymphosarcoma are difficult to discern, or noticeable only when the disease is advanced. Enlarged lymph nodes can be difficult for a layperson to identify without training, and decreased appetite, tiredness, weight loss, vomiting, diarrhea, weakness, or excessive thirst or urination can have much simpler causes. Certain breeds (including Goldens) and middle aged dogs are more likely to have lymphoma, but other breeds and younger dogs can also be affected. See our Links for more detailed discussion of symptoms.