CT features of jaw venous malformations and differential diagnosis from osteosarcoma of the j aw / 实用放射学杂志

ABSTRACT

Objective To analyze the CT imaging features of jaw venous malformation (VM),and to evaluate the effect and diagnostic significance of CT in differentiating VM from osteosarcoma of the j aw.Methods 22 cases with pathological diagnosis of j aw VM and 13 cases of jaw osteosarcoma were reviewed on their CT images’morphologic characters and CT values.SPSS statistics 25.0 software package was used for statistical analysis.Results 50% of jaw VM cases showed fanGshaped bone trabecula structure,and 31.8% showed lumbricoid vessels.No invasive periosteal reaction was found in jaw VM cases.53.5% of jaw osteosarcoma cases showed invasive periosteal reactions.Neither fanGshaped bone trabecula structure nor lumbricoid vessels was found in jaw osteosarcoma cases.Significantly statistical differences existed in these morphologic characters between these two groups (P＜0.01).Minimum enhanced CT value and maximum nonGenhanced CT value were statistically different between the two groups (P＜0.05 ,U＞ 0).The AUC of minimum enhanced CT value,maximum plain CT value,and the combined predict parameter of these two values were 0.735,0.864,and 0.956,respectively.Conclusion FanGshaped bone trabecula structure and lumbricoid vessels are key features in diagnosing jaw VM on CT.Jaw VM has a lower maximum nonGenhanced CT value and a higher minimum enhanced CT value than jaw osteosarcoma has.The combined predict parameter of these two values has good diagnostic efficacy.