ORLANDO (EGMN) - Polymorphisms of the CD44 gene could help identify patients with gastric cancer who are at increased risk of tumor relapse, according to investigators who analyzed blood and tissue from 137 patients.Gastric cancer patients with either of two particular alleles relapsed nearly 5 years earlier than did other patients without these variants, Dr. Thomas Winder reported at a meeting on gastrointestinal cancers sponsored by the American Society of Clinical Oncology."The CD44 pathway might...