A Newly Developed Pancreatic Adenocarcinoma in a Patient with Advanced Thyroid Cancer under Long-Term Sorafenib Use
Min-Ji KIM; Han-Sang BAEK; Sung-Hak LEE; Dong-Jun LIM.
International Journal of Thyroidology
; : 175-179, 2021.
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| WPRIM | ID: wpr-914657
Sorafenib, an oral multi-target tyrosine kinase inhibitor (MTKI) for treatment of radioiodine-refractory differentiated thyroid cancer can induce acute or chronic pancreatitis as an adverse event. However, there have been no reports of pancreatic cancer associated with MTKI, especially among long-term MTKI user. A 60-year-old male patient visited our outpatient cancer clinic due to aggravated abdominal and back pain. He had been taking sorafenib for over five years for advanced thyroid cancer with multiple lung metastases, without any adverse events except mild hand-foot syndrome and slightly increased liver enzymes at the initial phase. Laboratory findings showed increasing serum amylase and lipase levels. An abdominal CT scan showed a 5.2 cm heterogeneous hypointense mass-like lesion on the pancreas distal body area. Under suspicion of pancreatic cancer, extensive surgery of distal pancreatectomy, unilateral nephrectomy, and unilateral adrenalectomy confirmed moderately differentiated adenocarcinoma with a background of chronic pancreatitis accompanying fibrosis and fat necrosis. Pancreatic cancer should be considered as well as pancreatitis in long-term MTKI users who show abrupt increases in serum pancreatic enzymes, although a causal relationship between long-term MTKI use and pancreatic cancer has not been elucidated.
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