Collision Tumor of the Stomach: A Case Report
Author Information
Author(s): Strofilas Alexandros, Dalianoudis Ioannis G, Lagoudianakis Emmanuel E, Genetzakis Michael, Tsekouras Dimitrios, Chrysikos John, Koronakis Nikolaos, Katergiannakis Vaggelogiannis, Manouras Andreas
Primary Institution: Hippocrateion Hospital, Athens Medical School, Athens, Greece
Hypothesis
The coexistence of primary gastric lymphoma and gastric adenocarcinoma is a rare event that may involve cancer to cancer metastasis.
Conclusion
The prognosis of collision tumors involving gastric lymphoma and adenocarcinoma is largely dependent on the stage of the adenocarcinoma at presentation.
Supporting Evidence
- The coexistence of gastric adenocarcinoma and primary gastric lymphoma is rarely observed.
- Helicobacter pylori infection may play a role in the tumorigenesis of both malignancies.
- Collision tumors arise from interpenetration of two synchronous malignancies.
Takeaway
This study talks about a rare case where a man had both a type of stomach cancer and lymphoma at the same time, which is unusual.
Methodology
The case was diagnosed through endoscopic biopsies and surgical examination.
Limitations
The study lacks large series data on the biological behavior of these tumors.
Participant Demographics
A 77-year-old Greek man.
Digital Object Identifier (DOI)
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