Search results
Results From The WOW.Com Content Network
Most affected individuals do not have symptoms. The gallbladder polyps are detected during abdominal ultrasonography performed for other reasons. [citation needed] The incidence of gallbladder polyps is higher among men than women. The overall prevalence among men of Chinese ancestry is 9.5%, higher than other ethnic types. [7]
Rokitansky–Aschoff sinuses are pseudodiverticula or pockets in the wall of the gallbladder.They may be microscopic or macroscopic. Histologically, they are outpouchings of gallbladder mucosa into the gallbladder muscle layer and subserosal tissue as a result of hyperplasia and herniation of epithelial cells through the fibromuscular layer of the gallbladder wall.
A polyp is an abnormal growth of tissue projecting from a mucous membrane. If it is attached to the surface by a narrow elongated stalk, it is said to be pedunculated; if it is attached without a stalk, it is said to be sessile. Polyps are commonly found in the colon, stomach, nose, ear, sinus(es), urinary bladder, and uterus.
The serrated polyposis syndrome (SPS) is a relatively rare condition characterized by multiple and/or large serrated polyps of the colon. Serrated polyps include SSLs, hyperplastic polyps, and traditional serrated adenomas. Diagnosis of this disease is made by the fulfillment of any of the World Health Organization's (WHO) clinical criteria. [4]
Cancer of the gallbladder may also be found incidentally after surgical removal of the gallbladder, with 1–3% of cancers identified in this way. Gallbladder polyps are mostly benign growths or lesions resembling growths that form in the gallbladder wall, [26] and are only associated with cancer when they are larger in size (>1 cm). [21]
Traditional serrated adenoma seen under microscopy with H&E stain, showing serrated crypts. SPS may occur with one of two phenotypes: distal or proximal. [6] The distal phenotype may demonstrate numerous small polyps in the distal colon and rectum, whereas the proximal phenotype may be characterized by relatively fewer, but larger polyps in the proximal colon (cecum, ascending colon, etc.). [6]
216 Benign neoplasm of skin. Melanocytic nevus; 217 Benign neoplasm of breast; 218 Uterine leiomyoma; 219 Other benign neoplasm of uterus; 220 Benign neoplasm of ovary; 221 Benign neoplasm of other female genital organs; 222 Benign neoplasm of male genital organs; 223 Benign neoplasm of kidney and other urinary organs; 224 Benign neoplasm of eye
These usually begin appearing before age 20, but the term juvenile refers to the type of polyp (i.e. benign hamartoma, as opposed to adenoma for example), not to the age of the affected person. [1] While the majority of the polyps found in juvenile polyposis syndrome are non- neoplastic , hamartomatous , self-limiting and benign, there is an ...