neoplasm digestive system neoplasm tumour of the GI system tumor of digestive system NCIT:C3052 tumour of the digestive system GI neoplasm tumor of the GI system neoplasm of gastrointestinal system GI system tumor neoplasm of digestive system neoplasm of the gastrointestinal system neoplasm of GI system gastrointestinal system neoplasm GI tumor tumour of digestive system digestive neoplasm tumor of the digestive system gastrointestinal tumor digestive system neoplasm (disease) gastrointestinal system tumor tumor of gastrointestinal system digestive tumour neoplasm of the digestive system MESH:D005770 gastrointestinal system tumour gastrointestinal tumour A neoplasm (disease) that involves the digestive system. tumour of gastrointestinal system tumor of the gastrointestinal system digestive system tumour neoplasm of the GI system MEDGEN:8398 GI system tumour GI system neoplasm digestive tumor EFO:0008549 digestive system tumor tumour of GI system UMLS:C0012243 tumor of GI system GI tumour gastrointestinal neoplasm tumour of the gastrointestinal system