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A Case of Pancreatic Metastasis From a Papillary Thyroid Carcinoma Mimicking Pancreatic Cancer
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Papillary thyroid cancer (PTC) has a good prognosis and a low incidence of distant metastases. It is extremely rare for PTC tometastasize to the pancreas. Only five cases have been previously reported worldwide. Most cases are discovered incidentally byabdominal computed tomography (CT) or positron emission tomography-CT (PET-CT) during follow-up studies afterthyroidectomies. Pancreatic metastasis of PTC is usually unidentifiable by a whole-body I131 scan, a common follow-up modality. When a pancreatic mass is found in patients with PTC, it must be differentiated from pancreatic cancer. In previous reports, patientswith pancreatic metastases of PTC underwent operations for therapeutic diagnosis or underwent fine needle aspiration biopsies(FNAB). However, it is unclear whether the benefit of an operation outweighs the risk. We experienced a case of PTC with pancreaticmetastasis that was found on PET-CT. Contrast-enhanced endoscopic ultrasonography (EUS) was performed to evaluate thecharacteristics of the pancreatic mass and pathological confirmation was obtained cytologically via EUS-FNA.
Abstract
Papillary thyroid cancer (PTC) has a good prognosis and a low incidence of distant metastases. It is extremely rare for PTC tometastasize to the pancreas. Only five cases have been previously reported worldwide. Most cases are discovered incidentally byabdominal computed tomography (CT) or positron emission tomography-CT (PET-CT) during follow-up studies afterthyroidectomies. Pancreatic metastasis of PTC is usually unidentifiable by a whole-body I131 scan, a common follow-up modality. When a pancreatic mass is found in patients with PTC, it must be differentiated from pancreatic cancer. In previous reports, patientswith pancreatic metastases of PTC underwent operations for therapeutic diagnosis or underwent fine needle aspiration biopsies(FNAB). However, it is unclear whether the benefit of an operation outweighs the risk. We experienced a case of PTC with pancreaticmetastasis that was found on PET-CT. Contrast-enhanced endoscopic ultrasonography (EUS) was performed to evaluate thecharacteristics of the pancreatic mass and pathological confirmation was obtained cytologically via EUS-FNA.
참고문헌 (10)
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