Those at the angle of the jaw and behind the stifle are the easiest to feel. Lymph nodes can also be enlarged a result of infection. There may be swelling around the bone involved, which is usually firm and often painful. Tumours within Body Cavities Unfortunately. The lungs may be the site of development of tumours, and are also a common site of tumour spread.
Signs seen include breathlessness and poor tolerance of exercise.
Coughing may also bee seen in some cases. Gastrointestinal System Persistent vomiting or diarrhoea may be seen in some gastrointestinal cancers. Inexplicable weight loss may also reflect cancer in this organ system, or result from advanced cancer which has spread throughout the body. There may be fresh or altered blood in the vomitus or faeces. There may be discomfort on defaecation in cases of rectal or prostatic tumours.