Some types of stomach tumors are adenocarcinomas, primary gastric lymphomas, GISTs, carcincoids and metastatic deposits, according to Florida Hospital Medical Center. Benign stomach tumors are classified as non-neoplastic and neoplastic.Continue Reading
Non-neoplastic benign tumors do not become malignant, though neoplastic tumors have the potential to become malignant, says Florida Hospital Medical Center. Non-neoplastic stomach tumors include hyperplastic polyps, inflammatory fibroid polyps and hamartomatous polyps. Neoplastic tumors include epithelial adenomas, fundic gland polyps, lipomas, leiomyomas and neural tumors. GISTs can be malignant or benign.
GISTs is an abbreviation for gastrointestinal stromal tumors, says the American Cancer Society. They are uncommon tumors that begin in the walls of the GI tract, in cells called the interstitial cells of Cajal, or ICC. These cells are actually part of the patient's nervous system, and regulate the contraction of muscles during digestion. There are many ways to find out if a person has GISTs, and if they are malignant. Diagnostic techniques include CT scans, endoscopies, MRI scans, PET scans and biopsies.
Adenocarcinomas are the most-common type of stomach tumor, according to Florida Hospital Medical Center and Mayo Clinic. They begin in the lining of the stomach, in the cells that produce mucus. Carcinoid tumors are rare, slow-growing and silent until they are very advanced, says MedlinePlus. They also begin in the lining of the stomach.Learn more about Gastrointestinal Issues