Table 1.

Clinical features of patients with pancreatic adenocarcinoma directly invading the duodenum complicated by upper gastrointestinal bleeding.

	Our patient	Lee et al1
Age (yr)	78	83
Sex	Male	Female
Clinical manifestation	Massive gastrointestinal bleeding (hematemesis)	Persistent gastrointestinal bleeding (hematemesis)
Endoscopic finding	Polypoid mass	Normal
Location of tumor invasion	The first and second portions of duodenum	The third portion of duodenum
Treatment	Radiotherapy, chemotherapy	Not mentioned
Survival duration	Six weeks	Not mentioned

¹Reference 9.