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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. Adenomatous polyps may be classified based on morphology in order to ...
For example, a lipoma is a common benign tumor of fat cells , and a chondroma is a benign tumor of cartilage-forming cells (chondrocytes). Adenomas are benign tumors of gland-forming cells, and are usually specified further by their cell or organ of origin, as in hepatic adenoma (a benign tumor of hepatocytes, or liver cells).
The benign tumors of the submandibular gland is treated by simple excision with preservation of mandibular branch of the facial nerve, the hypoglossal nerve, and the lingual nerve. [17] Other benign tumors of minor salivary glands are treated similarly. Malignant salivary tumors usually require wide local resection of the primary tumor.
The colorectal adenoma is a benign glandular tumor of the colon and the rectum. It is a precursor lesion of the colorectal adenocarcinoma ( colon cancer ). [ 1 ] [ 2 ] [ 3 ] They often manifest as colorectal polyps .
Some benign tumors are able to grow to a dangerous size because unlike other cells, “tumor cells have found a way to evade the normal life and death cycle of a cell — meaning they’ve learned ...
Mucinous cystadenoma is a benign cystic tumor lined by a mucinous epithelium. It is a type of cystic adenoma ( cystadenoma ). Mucinous cystadenomas arise in a number of locations; however, cases of mucinous cystadenoma at different locations are not generally considered to be related to one another.
Adenomatoid tumors are rare and benign mesothelial tumors, which arise from the lining of organs. It mainly presents in the genital tract, in regions such as the testis [ 1 ] and epididymis . [ 2 ] Because of this, researchers had a difficult time concluding that type of tumor has a mesothelial origin.
Here's what a tumor on the jaw might mean for your dog, ... Possible Causes of Oral Tumors in Dogs. Some of the possible causes of a tumor in a dog's mouth or on the jaw include the following: