[Cystic teratoma of the pancreas].

The preoperative diagnosis of cystic tumours of the pancreas can be difficult. It is usually based on morphological and biological (i.e., cyst fluid content of tumour markers) data. However, the latter can be misinterpreted in case of exceptional cystic tumours, other that cystadenomas. We report here the case of a 45-year old woman who was operated on for a benign cystic mature teratoma with endocrine component and high concentrations in cyst fluid CEA and CA 72.4 which was evocative of a malignant mucinous cystadenoma.