A Rare Collision Tumor Composed of Follicular Lymphoma and Adenocarcinoma in the Ampulla of Vater: A Case Report

<table>Endoscopic appearance showing the duodenal papilla covered with whitish tiny granules. The tumor of the ampulla of Vater is not exposed.</table>

Case Reports in Pathology

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Figure 2

Figure 2: A Rare Collision Tumor Composed of Follicular Lymphoma and Adenocarcinoma in the Ampulla of Vater: A Case Report 