Aetiology | Number of patients (N = 298) |
---|---|
Malignant stenosis | 223 (75%) |
Pancreatic carcinoma | 98 |
Bile duct carcinoma | 73 |
Gall bladder carcinoma | 7 |
Ampullary carcinoma | 8 |
Lymph node metastasis | 11 |
Lymphoma | 1 |
Unspecified | 25 |
Benign stenosis | 75 (25%) |
Inflammatory | |
Chronic pancreatitis | 27 |
Cholelithiasis | 3 |
Mirizzi syndrome | 1 |
Primary sclerosing cholangitis | 26 |
Postsurgical | 13 |
Unspecified | 5 |