Infection Of The Lymph Node In Bowel Cancer Or Simple Infection?? What Will Differ In Symptoms???

Cancer or simple infection?? What will differ in symptoms??? - infection of the lymph node in bowel

My husband was 26 years of emergency care by a strange pain on one side. Where they discovered that the swollen spleen. After a Catscan a Mass was held in the lymph nodes near the groin. If the doctor determines that the impression suggested that obtaining a biopsy. In addition, some abnormal blood results came in the field of red blood cells. Who knows, right again. But the medical examiner for further analysis. The only symptom he has very loose bowels. I've heard that could be an infection or cancer? To share stories, or things I can say it was more torward infection or cancer?
Please help me ??????? Answers THANK YOU! ;)