Abstract
A 73-year-old female underwent distal pancreatectomy in 2009. In 2011, chest CT revealed a nodular lesion. Based on the suspicion of primary lung cancer, right lower lobectomy was performed. Cytology of the tumor stump showed atypical cell clusters showing palisading and formation of tubular structures. The tumor cells had comparatively small and elliptic nuclei and were elliptical in shape cytoplasm. Histologically, the lesion was a metastatic tumor in the lung from primary pancreatic cancer. In addition to the past history, the presence of a solitary lung nodule composed of cylindrical cells forming tubular structures led to the presumptive diagnosis of a pulmonary metastasis from primary pancreatic cancer.
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