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Henry D. Appelman, Elson B. Helwig, Sarcomas of the Stomach, American Journal of Clinical Pathology, Volume 67, Issue 1, 1 January 1977, Pages 1–10, https://doi.org/10.1093/ajcp/67.1.1
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Abstract
Appelman, Henry D., and Helwig, Elson B.: Sarcomas of the stomach. Am J Clin Pathol 67: 2–10, 1977. Sarcomas of the gastric wall, other than lymphomas, are a heterogeneous group of stromal malignant neoplasms composed of round and spindle cells. Many are malignant forms of epithelioid leiomyoma. Small cell size, high cellular density, a high rate of mitotic activity, and cellular pleomorphism are helpful clues in distinguishing malignant from benign gastric stromal tumors. Sarcomas of the stomach are aggressive, rapidly growing neoplasms. Among 44 examples metastasis occurred in three-fourths of the patients, usually within the first year after diagnosis.