PMC3539113_01
Leiomyosarcoma arising from the intrapancreatic common bile duct. The tumor infiltrates the full thickness of the common bile duct, extends into its lumen and invades the pancreas. Tumor cell necrosis, high cellularity, many mitotic counts, pleomorphism, and nuclear atypia are present in the neoplasm (H&E, x10).
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F1
Histopathologic examination of the specimen revealed a polypoid tumor, 1.5 x 1.4 x 2 cm in size, infiltrating the full thickness of the common bile duct, extending into its lumen, without obvious invasion of the pancreatic tissue (Figs. 1-3).
Leiomyosarcoma arising from the intrapancreatic common bile duct (Desmin, x10).
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F2
Histopathologic examination of the specimen revealed a polypoid tumor, 1.5 x 1.4 x 2 cm in size, infiltrating the full thickness of the common bile duct, extending into its lumen, without obvious invasion of the pancreatic tissue (Figs. 1-3).
Leiomyosarcoma arising from the intrapancreatic common bile duct (smooth muscle actin, x20).
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PMC3539113_01_jkss-84-66-g003.jpg
F3
Histopathologic examination of the specimen revealed a polypoid tumor, 1.5 x 1.4 x 2 cm in size, infiltrating the full thickness of the common bile duct, extending into its lumen, without obvious invasion of the pancreatic tissue (Figs. 1-3).