In this study, published in the November issue of Surgery Today, a research team aimed to clarify the clinicopathologic characteristics relevant to the diagnosis of mucinous cystic tumors of the pancreas.
The team retrospectively assessed the clinical features and histopathologic findings of 5 patients who underwent curative resection for mucinous cystic tumors of the pancreas, between 1975 and 2000.
All 5 patients were women, aged 36 to 69 years.
Tumors were located in the pancreatic body and tail.
The team found that histopathologically, 3 tumors were mucinous cystadenomas, while 2 were mucinous cystadenocarcinomas.
They also determined that all 5 tumors had ovarian-type stroma.
Stromal luteinization was found in the 3 adenomas.
|Histopathologically, 3 tumors were mucinous cystadenomas, while 2 were mucinous cystadenocarcinomas.|
The team classified the tumors into 2 groups according to whether the epithelial lining was endocervical or intestinal.
All tumors were spherical and multilocular with a fibrous pseudocapsule.
By using T1-weighted magnetic resonance images, the team found that mucinous cystadenomas with watery mucin showed low signal intensity.
However, mucinous cystadenocarcinomas with gelatinous mucin or hemorrhagic contents demonstrated high signal intensity.
Dr Takashi Hara's team concluded, "Signal intensity on T1-weighted magnetic resonance images provides highly useful diagnostic information on mucinous cystic tumors of the pancreas".
"Furthermore, tumors may be classified into 2 groups according to the type of epithelial lining".