Aims and objectives
Lymphoepithelial cysts (LEC) of the pancreas arerarebenign lesions.
The imaging appearance is often similar to other pancreatic lesions such as serous cystic neoplasms (SCNs),
mucinous cystic neoplasms (MCNs) and intraductal papillary mucinous neoplasms (IPMNs).
Both MCNs and IPMNs are characterized by a neoplastic mucin-producting epithelial lining and have a potential to a malignant transformation.
The overlapping imaging features of these lesions make differentiation of LEC with...
Methods and materials
We retrospectively reviewed ten cases of resected and histopathological confirmed LECs in our institution in the last 12 years.
Data like age,
gender and imaging findings were retrospectively analyzed.
Three patients underwent preoperative CT and MRI,
four underwent MRI and three underwent CT. 10 patients with histologically confirmed MCNs and 10 patients with histologically confirmed side branch IPMNs (randomly selected out of the institutional study collective of 1271 IPMN patients) served...
The patients were considered as symptomatic having a left upper quadrant (LUQ) or epigastric pain without other obvious pain cause rather than pancreas.
Clinically abdominal pain was the most common clinical feature in all three groups.
Other symptoms included post-prandial pain,
cramps etc. LECs were most common in middle-aged males (nine males,
ranging between 43 to 63 years (mean: 50).
All patients revealed a well-defined exophytic lesion within the tail (70%) or body (30%) of...
we were able to identify three imaging subtypes of LEC with the first one having a well-defined cystic morphology and the other two being subsolid lesions with either diffuse solid component or with a mural nodule.
In some cases these features show a big overlap with other cystic pancreatic lesions,
especially with MCN and IPMN.
The later two have a potential to a malignant transformation making it curtail to different them on one hand to avoid an invasive disease and on the other...
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