Liver Cavernous Hemangioma Mimicking Metastatic Thyroid Carcinoma on (superscript 131)I Imaging: A Case Report and Review of the Literature

(superscript 131)I whole body scan may detect the functioning metastasis of differentiated thyroid carcinoma. However non-thyroidal false positive uptake may mislead the physician to inappropriate treatment. We report a case of 45-year-old woman with papillary thyroid carcinoma who demonstrated strong (superscript 131)I uptake in a cavernous hemangioma of the liver. This common benign liver lesion is usually incidentally discovered in patients without clinical evidence of liver disease and most frequently occurs in woman between the third and fifth decade of life. Combination of ultrasound, contrast-enhanced CT and (superscript 99m)Tc labeled RBC scanning using SPECT may help to make a good differential diagnosis. We report this case to raise index of suspicion of this common benign disease to avoid unnecessary radiotherapy.