Tc-99m hynic octreotide SPECT-MRI in brain metastasis of thyroid papillary-insular cancer.

摘要

Tc-99m somatostatin analogues are a relatively new imaging tool for different tumors including thyroid carcinoma. We present a case of a papillary and insular thyroid cancer with a 1-131 whole body scan suggestive of having clavicle and skull metastasis. Bone scanning confirmed the clavicle lesion but excluded skull metastases leading to the interpretation of a possible radioiodine head contamination. However, Tc-99m octreotide images fused with head MRI allowed us to diagnose and evaluate the extension of a brain metastasis in a patient with no signs or symptoms of endocranial hypertension.