Fibrous stroma found in two patients with chronic pancreatitis was investig
ated. The helical CT-pathologic correlation confirmed that fibrous stroma f
ound in the subcapsular zone of the pancreatic parenchyma corresponded to t
he area that was identified as a hypodense zone in the early phase by spira
l CT and became isodense with the internal parenchyma in the delayed phase.
These CT findings have an important implication for the diagnosis of chron
ic pancreatitis.