lymphoma in dogs symptoms
Enlarged lymph nodes or âglandsâ are the most common symptom of lymphoma. Dogs still may feel normal at this point in the disease or they may have vague symptoms. Nonspecific signs may include: 1  Distended abdomen. 2  Lethargy.3  Coughing. 4  Shortness of breath. 5  Fever.6  Poor appetite.nlarged lymph nodes or âglandsâ are the most common symptom of lymphoma. Dogs still may feel normal at this point in the disease or they may have vague symptoms. Nonspecific signs may include: 1  Distended abdomen. 2  Lethargy.