peutz–jeghers syndrome is a rare condition characterized by mucocutaneous pigmentation, polyposis and an increased cancer risk at a number of gastrointestinal and extra intestinal organs. we present a patient with a history of gastrointestinal bleeding with no mucocutaneous pigmentation. upper and lower gastrointestinal endoscopy revealed multiple polyps located in the deuodenum and colon. hist...

Multiple intestinal neoplasia (Min) mice were originally identified by Moser et al. Min mice have a heterozygous mutation in the tumor suppressor gene, adenomatous polyposis coli (Apc). The APC gene is mutated in familial adenomatous polyposis (FAP). Min mice spontaneously develop intestinal polyps, similar to humans, but mainly in the small intestine. Polyps form as early as approximately 4 we...

Background. Craniopharyngiomas are benign epithelial tumors. According to embryogenetic theory, these neoplasms develop from the remains of cells Rathke’s pouch, which connects cavities primary oral tube with pituitary gland in embryonic period. The metaplastic theory assumes occurrence craniopharyngiomas as a result metaplasia chiasmal-sellar region. Objective. To present clinical case ectopic...

Tumor epithelial cells develop within a microenvironment consisting of extracellular matrix, growth factors, and cytokines produced by nonepithelial stromal cells. In response to paracrine signals from tumor epithelia, stromal cells modify the microenvironment to promote tumor growth and metastasis. Here, we identify interleukin 33 (IL-33) as a regulator of tumor stromal cell activation and med...

Studies of tumors from human familial adenomatous polyposis, sporadic colon cancer, and mouse and rat models of intestinal cancer indicate that the majority of early adenomas develop through loss of normal function of the Adenomatous polyposis coli (APC) gene. In murine models of familial adenomatous polyposis, specifically the multiple intestinal neoplasia mouse (Min) and the polyposis in the ...

Cap polyposis is a rare intestinal disorder. Characteristic endoscopic findings are multiple inflammatory polypoid lesions covered by caps of fibrous purulent exudate. Although a specific treatment has not been established, some studies have suggested that eradication therapy for Helicobacter pylori (H. pylori) is effective. We report a case of a 20-year-old man with cap polyposis presenting wi...

The history of a family suffering from familial intestinal polyposis is presented, showing how a delayed onset of symptoms together with a lack of knowledge of affected relatives may obscure the familial nature of the disease. The necessity of examining all accessible relatives, irrespective of their advancing years, is stressed. Further, it is shown that in the absence of any familial incidenc...

This study evaluates the results of endorectal Ileal J Pouch Anal Anastomosis (IJPAA) in 13 patients with Ulcerative colitis and 7 patients with familial adenomatous polyposis in 6 years in Emam Hosein Hospital. In the last, for this patients permanent Ileostomy was performed, but with (IJPAA) operation permanent Ileostomy is abandoned. Two patients, total colectomy rectal mocosectomy and ilea...