Gastric Tumors Other than Adenocarcinoma and Lymphoma
In the previous chapters, gastric adenocarcinomas and lymphomas have been discussed. In addition to these two main tumor types, a variety of other gastric tumors are classified by the WHO according to their origin. These lesions are described in this chapter (Table 1).
Most tumorous lesions of the stomach are of epithelial origin. Among them, adenocarcinomas are the dominating tumor type. However, a variety of other epithelial and non-epithelial tumors can occur in the stomach, ranging from benign polyps with little tendency for malignant degeneration, such as fundic gland polyps, to malignant tumors such as carcinoids. In between, we find lesions with the potential for malignant degeneration like adenomas and (some) hyperplastic polyps. The aim of this chapter is to review epidemiological, pathogenetic, histological and clinical data for these less frequent epithelial and mesenchymal tumors of the stomach.
KeywordsSmall Cell Carcinoma Gastric Tumor Mesenchymal Tumor Hyperplastic Polyp Glomus Tumor
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