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The stomach is an organ of the gastrointestinal tract that sits in the abdomen. [1] Tumors of the stomach are known as gastric tumors, and can be either benign or malignant (gastric cancer). These tumors arise from the cells of the gastric mucosa which lines the stomach. Typically, most gastric tumors are cancerous and not detected until a ...
A benign tumor is a mass of cells that does not invade neighboring tissue or metastasize (spread throughout the body). Compared to malignant (cancerous) tumors, benign tumors generally have a slower growth rate. Benign tumors have relatively well differentiated cells.
Plexiform angiomyxoid myofibroblastic tumor (PAMT), also called plexiform angiomyxoma, [1] plexiform angiomyxoid tumor, [2] or myxofibroma, [3] is an extremely rare benign mesenchymal myxoid tumor along the gastrointestinal tract. Most of PAMTs occur in the gastric antral region, but they can be situated anywhere in the stomach.
If patients present with hepatic metastases they might have remaining life span of one year with a five-year survival rate of 20–30%. In patients with localized tumor or localized lymph spread the survival rate of five years is 90%. Lastly, surgical resection of local tumor could lead to complete cure without recurrence in 20–25% of ...
Digestive system neoplasms are tumors which affect the digestive system. There are many different and various pathologic classification for digestive system neoplasms. Considering the part of the digestive system that they origin, they are classified as: [1] esophageal cancer; gastric cancer; small intestinal cancer; colorectal cancer; anal cancer
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the gastrointestinal tract. GISTs arise in the smooth muscle pacemaker interstitial cell of Cajal, or similar cells. They are defined as tumors whose behavior is driven by mutations in the KIT gene (85%), PDGFRA gene (10%), or BRAF kinase (rare).
Adenoma is a benign tumor of glandular tissue, such as the mucosa of stomach, small intestine, and colon, in which tumor cells form glands or gland-like structures. In hollow organs (digestive tract), the adenoma grows into the lumen - adenomatous polyp or polypoid adenoma.
Gastric outlet obstruction (GOO) is a medical condition where there is an obstruction at the level of the pylorus, which is the outlet of the stomach. Individuals with gastric outlet obstruction will often have recurrent vomiting of food that has accumulated in the stomach, but which cannot pass into the small intestine due to the obstruction.