Of the 64 patients, 35cases underwent tumor resection (radical resection in 16cases, palliative resection in 19cases), and 29 patients underwent bile duct drainage operations (internal drainage in 16cases and external drainage in 13cases).

• 其中35例行手术切除,包括根治性切除16例,姑息性切除19例; 29例行胆管引流术,包括胆肠内引流术16例,胆管外引流术13例。