Search results
Results From The WOW.Com Content Network
Adenomatous polyp colon with malignant focus at apex. A colorectal polyp is a polyp (fleshy growth) occurring on the lining of the colon or rectum. [1] Untreated colorectal polyps can develop into colorectal cancer. [2] Colorectal polyps are often classified by their behaviour (i.e. benign vs. malignant) or cause (e.g. as a consequence of ...
While the majority of the polyps found in juvenile polyposis syndrome are non-neoplastic, hamartomatous, self-limiting and benign, there is an increased risk of adenocarcinoma. Solitary juvenile polyps most commonly occur in the rectum and present with rectal bleeding.
Under microscopy, juvenile polyps are characterized by cystic architecture, mucus-filled glands, and prominent lamina propria. Inflammatory cells may be present. Compared with sporadic polyps, polyps that occur in juvenile polyposis syndrome tend to have more of a frond-like (resembling a leaf) growth pattern with fewer stroma, fewer dilated ...
Some polyps are tumors and others are non-neoplastic, for example hyperplastic or dysplastic, which are benign. The neoplastic ones are usually benign, although some can be pre-malignant, or concurrent with a malignancy. The name is of ancient origin, in use in English from about 1400 for a nasal polyp, from Latin polypus through Greek. [1]
H&E stain of fundic gland polyp showing shortening of the gastric pits with cystic dilatation The development of polyps depends on the underlying disorder. [ 17 ] In sporadic cases of FGPs, more than 90% of patients have activating mutations in the β-catenin gene, so that they may be considered "neoplastic" polyps.
Gardner syndrome is set apart as a subtype because, in addition to colonic polyps, there are also extra-colonic growths (both malignant and benign). [8] There are many terms used to describe "APC-associated polyposis condition" including FAP, attenuated FAP, Gardner syndrome, Turcot syndrome, and gastric adenocarcinoma and proximal polyposis of ...
Malignant vulvar neoplasms makes up 6% of all reproductive organ cancer and 0.7% of the total cancers in women in the United States. One out of every 333 women will develop vulvar cancer. In the United States, vulvar cancer accounts for nearly 6% of cancers of the female reproductive organs and 0.7% of all cancers in women.
Potentially-malignant neoplasms include carcinoma in situ. They are localised, and do not invade and destroy but in time, may transform into cancer. Malignant neoplasms are commonly called cancer. They invade and destroy the surrounding tissue, may form metastases and, if untreated or unresponsive to treatment, will generally prove fatal.