Oldal kiválasztása

source of the following text: radiopaedia.org

A serous cystadenoma of the pancreas (microcystic adenoma) is an uncommon type of benign cystic pancreatic neoplasm.


Typically large lesion at presentation ( ~ 5 cm) and characterised by innumerable glycogen rich flat or cuboidal epithelial lined cysts seperated by fibrous septa. There can be signifcant variation in locule size (1 – 2cm) 2-4. Three morphological patterns have been described 1

  • polycystic : 70 %
  • honeycomb : 20 %
  • oligocystic (macrocystic variant) : < 10 % (cysts can be larger than 2 cm)

Demographics and clinical presentation

There is a recognised strong female predilection (M : F ~  1 : 4 and usually presents in the middle age to elderly ( > 60 years of age).
Many patients are asymptomatic. Some may present with pain, weight loss jaundice or a mass 4,6.


Radiographic features

Plain film
  • can be normal
  • may demonstrate amorphous central calcification overlying the pancreas
  • typically shows an echogenic mass in the pancreatic head region due to the nature of microcysts (the oligocystic sub type may individually identify cysts 6)
  • typically demonstrates a multicystic, lobulated mass in the pancreatic head region.
  • a characteristic enhancing central scar may be present which can show associated stellate calcification (present in ~ 20 % of cases)
  • T1 : typically low signal
  • T2 : the central fibrous scar (if present) is low signal while cystic components themselves are high signal
  • may show enhancement due to hypervascular components 4

Treatment and prognosis

Most lesions are observed 6. They are benign lesions and do not recur once resected 4.

Differential diagnosis

See also