A Case of a Metastatic Disease to the Pancreas from a Small-Cell Lung Carcinoma Documented by a CT-Scan-Guided Trucut Biopsy: The Diagnostic Role of Cytomorphology and Immunohistochemistry

Pancreatic metastasis from non-small cell lung carcinoma diagnosed on EUS biopsy: report of a rare case and potential pitfall

Lung non-small cell carcinoma is one of the most common cancers in the world. Pancreas metastasis from lung cancer is very rare. Endoscopic ultrasound-guided fine needle aspiration biopsy (EUS-FNAB) is a useful method to improve the diagnosis of pancreatic tumors and to guide the treatment plan. However, the limited amount of specimen obtained from EUS-FNAB may be a pitfall. Here we present a case of pancreatic metastasis from lung non-small cell carcinoma initially mimicking primary pancreatic adenocarcinoma.

Metastasis-Induced Acute Pancreatitis Successfully Treated with Chemotherapy and Radiotherapy in a Patient with Small Cell Lung Cancer

Although involvement of pancreas is a common finding in small cell lung cancer (SCLC), metastasis-induced acute pancreatitis (MIAP) is very rare. A 50-year-old female with SCLC who had limited disease and achieved full response after treatment presented with acute pancreatitis during her follow-up. The radiologic studies revealed a small area causing obliteration of the pancreatic duct without mass in the pancreatic neck, and endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) confirmed the metastasis of SCLC. The patient was treated successfully with systemic chemotherapy and radiotherapy delivered to pancreatic field. In SCLC, cases of MIAP can be encountered with conventional computed tomography with no mass image, and positron emission tomography and EUS-FNA can be useful for diagnosis of such cases. Aggressive systemic and local treatment can prolong survival, especially in patients with good performance status.