Basal cell adenoma and myoepithelioma of the parotid gland: patterns of enhancement at two-phase CT in comparison with Warthin tumor.
作者： Ji Young Lee , , Hyung-Jin Kim , Yi Kyung Kim , Jihoon Cha
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摘要: Purpose Early enhancement and a washout pattern are reported to be the characteristic imaging features of Warthin tumor (WT). The purpose this study was evaluate patterns basal cell adenoma (BCA) myoepithelioma (ME) parotid gland on two-phase computed tomography (CT), compared with WT. Methods We retrospectively evaluated CT examinations histologically proven 19 BCAs, 12 MEs, 23 WTs gland. In all patients, scans were obtained at early delayed phases scanning delays 40 180 s, respectively. measured attenuation values each phase calculated relative percentage ratio. From data acquired, we statistically enhancing characteristics among three groups. Results Based results ratio, 15 (79%) 9 (75%) (100%) demonstrated scans. Despite variations individual tumors, both parameters revealed no significant difference Conclusion BCAs MEs frequently show CT, which can indistinguishable from in majority cases.
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