[Preoperative diagnostics in periampullary adenocarcinomas].

Background: Approximately 30-40% of pancreatoduodenectomies for adenocarcinomas result in nonpancreatic periampullary adenocarcinoma as the final diagnosis. Depending on the origin, a distinction is made between four different carcinomas with histomorphological subtypes.

Objective: Carcinoma location and subtype are of prognostic and therapeutic relevance; however, the preoperative differentiation is often incorrect despite modern diagnostics.

Material And Methods: Overview of the current literature on the classification and preoperative diagnostics of periampullary adenocarcinomas.

Results: A precise knowledge of the papillary anatomy is necessary for the correct classification of diagnostic findings. Current studies demonstrate diagnostically valuable information from the anamnesis, imaging and endoscopy.

Conclusion: In ca. 70-80% of cases a correct diagnosis of the type of periampullary adenocarcinoma is possible on the basis of interdisciplinary diagnostics. This potentially enables a correspondingly individualized treatment planning in the preoperative phase.