text: Image-directed and color Doppler studies of gallbladder tumors.
  Thirteen cases of primary adenocarcinoma of the gallbladder (GB), 1 of malignant fibrous histocytoma, 3 of metastatic adenocarcinoma, 5 of adenoma, 5 of polypus, 2 of xanthogranuloma, 6 of chronic cholecystitis, 4 of acute cholecystitis, and 8 of subacute cholecystitis were studied by image-directed and color Doppler ultrasonography (CDUS). All of the 14 cases of primary GB cancer (10 masses, 4 thickening wall) were found to have a high velocity arterial blood flow signal in the wall of the GB. In contrast, the 3 cases of metastatic cancer of the GB had no blood flow signal in the wall of the GB. For the 30 cases of benign lesions of the GB, only in 12 cases was a low velocity blood flow signal found. Nine of 10 cases of primary GB malignancy were found to have high velocity arterial blood flow signals in the tumor masses. No blood flow signal was observed in the masses of 13 cases (3 of metastatic adenocarcinoma, 5 of adenoma, 5 of polypus). An abnormal high velocity arterial blood flow signal observed within masses in the GB or in the GB wall is a significant feature of primary GB cancer and thus helps to differentiate primary GB cancer from metastatic and benign lesions of the GB.
  
entities: ['gallbladder tumors']
entities: Pathological_formation
entities: PMID-7806663_T1
entities: ['adenocarcinoma']
entities: Pathological_formation
entities: PMID-7806663_T2
entities: ['gallbladder']
entities: Organ
entities: PMID-7806663_T3
entities: ['GB']
entities: Organ
entities: PMID-7806663_T4
entities: ['malignant fibrous histocytoma']
entities: Pathological_formation
entities: PMID-7806663_T5
entities: ['metastatic adenocarcinoma']
entities: Pathological_formation
entities: PMID-7806663_T6
entities: ['adenoma']
entities: Pathological_formation
entities: PMID-7806663_T7
entities: ['polypus']
entities: Pathological_formation
entities: PMID-7806663_T8
entities: ['xanthogranuloma']
entities: Pathological_formation
entities: PMID-7806663_T9
entities: ['GB cancer']
entities: Pathological_formation
entities: PMID-7806663_T10
entities: ['wall']
entities: Multi-tissue_structure
entities: PMID-7806663_T11
entities: ['arterial blood']
entities: Organism_substance
entities: PMID-7806663_T12
entities: ['wall']
entities: Multi-tissue_structure
entities: PMID-7806663_T13
entities: ['GB']
entities: Organ
entities: PMID-7806663_T14
entities: ['metastatic cancer']
entities: Pathological_formation
entities: PMID-7806663_T15
entities: ['GB']
entities: Organ
entities: PMID-7806663_T16
entities: ['blood']
entities: Organism_substance
entities: PMID-7806663_T17
entities: ['wall']
entities: Multi-tissue_structure
entities: PMID-7806663_T18
entities: ['GB']
entities: Organ
entities: PMID-7806663_T19
entities: ['benign lesions']
entities: Pathological_formation
entities: PMID-7806663_T20
entities: ['GB']
entities: Organ
entities: PMID-7806663_T21
entities: ['blood']
entities: Organism_substance
entities: PMID-7806663_T22
entities: ['GB malignancy']
entities: Pathological_formation
entities: PMID-7806663_T23
entities: ['arterial blood']
entities: Organism_substance
entities: PMID-7806663_T24
entities: ['tumor']
entities: Pathological_formation
entities: PMID-7806663_T25
entities: ['blood']
entities: Organism_substance
entities: PMID-7806663_T26
entities: ['metastatic adenocarcinoma']
entities: Pathological_formation
entities: PMID-7806663_T27
entities: ['adenoma']
entities: Pathological_formation
entities: PMID-7806663_T28
entities: ['polypus']
entities: Pathological_formation
entities: PMID-7806663_T29
entities: ['arterial blood']
entities: Organism_substance
entities: PMID-7806663_T30
entities: ['GB']
entities: Organ
entities: PMID-7806663_T31
entities: ['GB wall']
entities: Multi-tissue_structure
entities: PMID-7806663_T32
entities: ['GB cancer']
entities: Pathological_formation
entities: PMID-7806663_T33
entities: ['GB cancer']
entities: Pathological_formation
entities: PMID-7806663_T34
entities: ['metastatic']
entities: Pathological_formation
entities: PMID-7806663_T35
entities: ['benign lesions']
entities: Pathological_formation
entities: PMID-7806663_T36
entities: ['GB']
entities: Organ
entities: PMID-7806663_T37