Unusual Appearance of Hyperintense Hemangiomata on Tc-99m Colloid SPECT/CT

作者：Rakheja Rajan; Probst Stephan^*; Li**ona Robert

来源：Clinical Nuclear Medicine, 2010, 35(2): 91-92.

• hemangioma
• hemangiomata
• colloid
• atypical
• unusual
• hepatic steatosis

A 44-year-old woman was investigated for hepatic steatosis, and underwent Xe-133 and Tc-99m colloid SPECT/CT. The colloid scan demonstrated 2 unexpected foci of hyperaccumulation corresponding to 2 CT-diagnosed hemangiomata. Further evaluation with Tc-99m RBC blood pool SPECT/CT confirmed these 2 lesions as intensely increased on delayed images, confirming hemangiomata. Hemangiomata are the most common benign mesenchymal hepatic tumors, and almost invariably present as defects on nuclear colloidal imaging.(1-3,8) This case serves to illustrate that hemangiomata can rarely be hyperintense on colloid imaging.(7) It is possible that the Xe-133 confirmed hepatic steatosis was a confounding factor in this patient.

• 出版日期2010-2