Differentiation of malignant and benign proximal bile duct strictures: The diagnostic dilemma

Table 4 Patients with benign proximal bile duct strictures: Preoperative, intra-operative and histological findings

Number of patient	Age/Gender	Medical history	Bismuth classification	Brush cytology	Intra-operative findings	Treatment	Final histological diagnosis
1	40/F	LC	Intrahepatic	Atypical cells	Suspicious	Hemihepatectomy le	Fibrosing cholangitis
2	54/F	-	Type IIIa	No malignancy	Suspicious	Hemihepatectomy ri1	Sclerosing cholangitis
3	56/M	IBD	Type IIIb	-	Not suspicious	Hemihepatectomy le12	Sclerosing cholangitis
4	60/F	-	Type II	No malignancy	Not suspicious	Local resection	Fibrosing cholangitis
5	63/F	LC	Type II	Atypical cells	Suspicious	Local resection	Erosive inflammation
6	65/F	-	Type IIIa	-	Not suspicious	Hemihepatectomy ri	Autoimmune-like cholangitis
7	68/F	LC	Type IIIa	-	Suspicious	Hemihepatectomy ri	Fibrosing cholangitis
8	69/F	-	Type IIIb	-	Not suspicious	Hemihepatectomy le	Sclerosing cholangitis
9	70/M	-	Type II	No malignancy	Not suspicious	Local resection	Erosive inflammation
10	71/M	CP	Type IIIa	No malignancy	Suspicious	Hemihepatectomy ri1	Autoimmune-like cholangitis

CP: Chronic pancreatitis; LC: Laparoscopic cholecystectomy; IBD: Inflammatory bowel disease.

¹Partial liver resection + local resection;

²Partial liver resection was performed because of atrophic liver lobes.