disease has location immune system organ benign neoplasm benign neoplasm benign neoplasm of spleen NCIT:C4902 SCTID:92408009 spleen benign neoplasm benign neoplasm of the spleen MONDO:0021500 UMLS:C0686615 ICD9:211.9 MEDGEN:146355 benign splenic neoplasm A benign neoplasm that involves the spleen. GARD:0025325 spleen neoplasm spleen