췌관 확장 (Main pancreatic duct dilatation)

췌관 확장 (Main pancreatic duct dilatation)

 

 

Main pancreatic duct dilatation 의 정의

Maximal diameter 가 3mm 이상

또는 

Pancreatic duct 의 Narroewst poration 보다 2mm 이상 dilatation 되어있을때

 

 

 

Main pancreatic duct dilatation 의 원인

Benign

(1) Chronic pancreatitis

(2) Pancreatobiliary maljunction

(3) Pancreatic divisum

(4) Post-traumatic pancreatic duct stricture

(5) Senile change

(6) Autoimmune pancreatitis

(7) Periampullary diverticulum

 

Malignant

(1) IPMNs

(2) Pancreatic intraepithelial neoplasms (PanINs : premalignant)

(3) Pancreatic cancer

(4) Neuroendocrine tumor (rarely)

(5) Solid papillary tumor

 

 

 

Main pancreatic duct dilatation 시 악성을 구분하는 소견

Benign

Transition site : smoothly tapered narrowing

Duct penetration sign positive

 

Malignant 

Transition site : Abrupt narrowing, longer than the benign group

Duct penetration sign negative

 

 

Pongprasobchai, et al., Pancreat Disord Ther 2015, 5:1

 

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