• Adenocarcinoma of the cervix is less common than squamous cell carcinoma, although its relative prevalence is increasing. (nih.gov)
  • After transurethral resection, pathology showed intestinal mucinous carcinoma. (bvsalud.org)
  • Fungating carcinoma of the colon Edges and margins of an intestinal tumor Adenocarcinoma is a malignant epithelial tumor, originating from superficial glandular epithelial cells lining the colon and rectum. (wikipedia.org)
  • B) Mucinous carcinoma: Presence of extracellular mucin (>50%) associated with ribbons or tubular structures of neoplastic epithelium. (wikipedia.org)
  • In the 4th edition of WHO classification of tumors of female reproductive organs, primary villoglandular mucinous adenocarcinoma is defined as a primary invasive glandular epithelial tumor of intestinal type and the synonyms are cloacogenic carcinoma or cloacogenic adenocarcinoma [ 1 ]. (hindawi.com)
  • Benign and malignant exocrine tumors of the points, mainly from pancreatic ductal cancer epithelium to adenocarcinoma the most common (accounting for more than 90% of pancreatic cancer), squamous cell carcinoma, mucinous carcinoma and acinar cells derived from acinar cells carcinoma, acinar cystadenocarcinoma are rare (accounting for about 10%), the above collectively referred to as pancreatic cancer. (cancerlive.net)
  • Herein, we present a case of coexisting neuroendocrine carcinoma and conventional adenocarcinoma (collision tumor) in the ampulla of Vater, which has seldom been reported in the literature. (koreamed.org)
  • Pathologically, sections on the ampulla of Vater showed conventional ductal adenocarcinoma extended and collided with poorly differentiated neuroendocrine carcinoma. (koreamed.org)
  • In conclusion, we hereby presented a case of coexisting neuroendocrine carcinoma and conventional adenocarcinoma in the ampulla of Vater. (koreamed.org)
  • In spite of their aggressive biologic behavior, some ductal adenocarcinomas show bland nuclear features, making the distinction of benign lesion from an invasive carcinoma difficult, particularly on small biopsy specimens (Fig. 1). (coek.info)
  • Mucinous Carcinoma, Upper Gastro-Intestinal Tract. (booksdo.com)
  • Adenoid cystic carcinoma, adenocarcinoma and expleomorphic adenoma were observed as primary malignant tumors. (selcukmedj.org)
  • Carcinoma arising with a background of pleomorphic adenoma is well documented. (ijpmonline.org)
  • We report 23 cases of tumors of the salivary gland comprising 18 cases of carcinoma ex pleomorphic adenoma, four cases of carcinosarcoma of the parotid and one case of benign metastasizing pleomorphic adenoma. (ijpmonline.org)
  • The tumors may be entirely benign, as are mucinous cystadenomas or intraductal papillary mucinous adenomas. (medscape.com)
  • Exocrine cells in benign tumors (accounting for 10% of pancreatic tumors), including the origin of the catheter in the duct epithelial adenoma, intraductal papilloma, serous cystadenoma, mucinous cystadenoma, and originated in the solid and acinar cells cystic tumor. (cancerlive.net)
  • Endocrine tumors, including insulinoma, gastrinoma (Zhuoyi syndrome), intestinal peptide tumors (Verner-Morrison syndrome), glucagon tumors, pancreatic somatostatin cell tumor, non-functional islet cell tumors (pancreatic polypeptide tumor). (cancerlive.net)
  • A small proportion of these tumors show large ducts lined by neoplastic cells, the so-called large-duct variant of adenocarcinoma. (coek.info)
  • By contrast, a rare subset of CRC tumors that show microsatellite instability (MSI-high) demonstrate marked responses to PD-1 therapy, similar to or exceeding that observed in other highly mutated cancers such as melanoma and lung adenocarcinoma. (cancer.gov)
  • Pleomorphic adenoma was the most common in primary benign tumors group with 29 cases, Warthin tumors were in the second place with 14 cases. (selcukmedj.org)
  • most of these tumors are adenocarcinomas containing pools of mucin. (biomedcentral.com)
  • Benign epithelial tumors (adenoma and cystadenoma) are characterized by the absence of cell proliferation and invasion. (biomedcentral.com)
  • mucinous and Brenner malignant tumors potentially develop from the Walthard nests. (biomedcentral.com)
  • Malignancy arising in mixed tumors of the salivary gland is a distinct entity that can occur sporadically or in association with a background of pleomorphic adenoma. (ijpmonline.org)
  • The tumor had a large proportion of mitotic cells and its resemblance to adenocarcinoma of the large intestine was striking. (hindawi.com)
  • Glomus Tumor, Gastro-Intestinal. (booksdo.com)
  • Granular Cell Tumor, Gastro-Intestinal. (booksdo.com)
  • Inflammatory Myofibroblastic Tumor, Upper Gastro-Intestinal Tract. (booksdo.com)
  • The most frequently encountered neoplastic pancreatic cysts include intraductal papillary mucinous neoplasm (IPMN), serous cystadenoma (SCA), mucinous cystic neoplasm with ovarian stroma (MCN), and solid pseudopapillary epithelial neoplasm. (medscape.com)
  • Mucinous Cystadenoma, Appendix. (booksdo.com)
  • many of these benign yet floridly proliferative lesions have been mistaken for invasive adenocarcinoma. (fliphtml5.com)
  • 2Introduction The distinction between benign proliferative glandular lesions of the endocervixand well-differentiated invasive cervical adenocarcinoma continues to be problematic, ashighlighted by the number of reports in the literature considering this diagnostic issue.Interestingly, the relatively recent recognition of a number of potential mimics ofinvasive adenocarcinoma of the endocervix underscores the likelihood that in the pastmany of these benign yet floridly proliferative lesions have been mistaken for invasiveadenocarcinoma. (fliphtml5.com)
  • For instance, in one institutional review five cases diagnosed asinvasive adenocarcinoma over a 14-year period were reclassified as benign mimics (1).Although a variety of immunoperoxidase stains have been tried, ultimately therecognition of benign pseudoneoplastic glandular lesions of the cervix rests upon theirdistinctive histologic features. (fliphtml5.com)
  • A number of benign processes may mimic adenocarcinoma in situ, invasiveadenocarcinoma or both. (fliphtml5.com)
  • Benign Mimics of Invasive Adenocarcinoma of the Cervix Tunnel Clusters Microglandular Hyperplasia Mesonephric Hyperplasia Endocervical Glandular Hyperplasias Arias-Stella ReactionTunnel Clusters Fluhmann first introduced the term "tunnel cluster" in his description of thehistology of the endocervix (2;3). (fliphtml5.com)
  • Villoglandular mucinous adenocarcinoma arises in the surface epithelium of the vulva. (hindawi.com)
  • Main duct IPMNs often have intestinal-type epithelium, and side-branch IPMNs usually have gastric-type epithelium. (medscape.com)
  • 3Type A tunnel clusters Type A tunnel clusters are characterized by a lobulated proliferation of small,closely packed glands that are lined by columnar mucinous epithelium. (fliphtml5.com)
  • The common admixture of type A and B tunnelclusters, in combination with the predominantly lobulated architecture, absence ofdesmoplasia and lack of deep, widely infiltrative glands helps distinguish it fromadenoma malignum.Type B tunnel clusters Type B tunnel clusters also have a lobular architecture, but are composed ofdilated glands lined by cuboidal or flattened epithelium and filled with inspissated,mucinous secretions. (fliphtml5.com)
  • Malignant cystadenocarcinoma and intramedullary mucinous carcinomas may be further subdivided into noninvasive and invasive types. (medscape.com)
  • Mucinous Cystadenocarcinoma, Appendix. (booksdo.com)
  • Mucinous cystadenocarcinoma account for about a fifth of appendix tumours, these produces mucin (a jelly-like substance). (cancerindex.org)
  • intestinal metaplasia with goblet cells and neuroendocrine cells are present in some cases. (nih.gov)
  • There may be a progression from mucinous metaplasia to mucinous adenoma and then mucinous adenocarcinoma. (bvsalud.org)
  • Intestinal metaplasia. (booksdo.com)
  • Intestinal obstruction. (cancer.gov)
  • Intestinal intussusception in adult patients is a rare entity, which corresponds to about 5% of all causes of intestinal obstruction, its diagnosis is not easy given the lack of specific symptoms of patients who present it. (bvsalud.org)
  • We describe a patient presenting with pneumoperitoneum, found at initial exploration to have a cecal perforation believed to be secondary to a large cecal adenoma, after palpation of the remainder of the colon revealed hard stool but no distal obstruction. (biomedcentral.com)
  • Minimal deviation adenocarcinoma (MDA) of mucinous type (adenoma malignum) is considered an extremely well differentiated variant of GAS and is encompassed within the category of GAS. (nih.gov)
  • The lattercan be particularly alarming if one is not aware that this type of change can occur (4).The main differential diagnosis is with extremely well-differentiated endocervicaladenocarcinoma (adenoma malignum). (fliphtml5.com)
  • [ 4 ] IPMN can progress from lower to higher grades of dysplasia and, ultimately, pancreatic ductal adenocarcinoma (PDAC). (medscape.com)
  • PATHOLOGY Ductal adenocarcinomas are firm to hard mass lesions that are often poorly defined grossly. (coek.info)
  • Precancer - Colorectal villous adenoma A lesion at least "high grade intramucosal neoplasia" (high grade dysplasia) has: Severe cytologic atypia Cribriform architecture, consisting of juxtaposed gland lumens without stroma in between, with loss of cell polarity. (wikipedia.org)
  • This occurs in mucinous adenocarcinoma, in which cells are poorly differentiated. (wikipedia.org)
  • Depending on glandular architecture, cellular pleomorphism, and mucosecretion of the predominant pattern, adenocarcinoma may present three degrees of differentiation: well, moderately, and poorly differentiated. (wikipedia.org)
  • Biopsy was also performed under ERCP, and poorly differentiated adenocarcinoma was noted. (koreamed.org)
  • Cancer - Histopathologic image of colonic carcinoid Precancer - Tubular adenoma (left of image), a type of colonic polyp and a precursor of colorectal cancer. (wikipedia.org)
  • GAS has a much poorer prognosis than HPV-associated cervical adenocarcinoma, with propensity for presentation at advanced stage and wide dissemination to unusual sites such as the ovary, omentum and peritoneum. (nih.gov)
  • Of the remaining non-HPV associated tumours, the most frequent is gastric-type adenocarcinoma (GAS), which is recognised by the World Health Organization as a form of mucinous adenocarcinoma of the cervix. (nih.gov)
  • Although all morphologic variants of IPMN can progress to cancer, invasive adenocarcinoma originating in gastric-type IPMNs is associated with a significantly worse survival rate than that originating from other types of IPMNs. (medscape.com)
  • Although juvenile polyps are common in children, adenomas are quite unusual. (medscape.com)
  • Research has demonstrated MAP's ability to invade intestinal goblet cells and cause acute and chronic goblet cell hyperplasia. (biomedcentral.com)
  • MAP's invasion of intestinal goblet cells may result in the initial pathologic lesion of IIBD and sporadic colorectal cancer. (biomedcentral.com)
  • Juvenile Polyposis Syndrome, Lower Gastro-Intestinal Tract. (booksdo.com)
  • Pseudomyxoma Peritonei ( PMP ) is a more common name given to the "jelly belly" syndrome caused by mucinous adenoma and mucinous adenocarcinoma. (cancerindex.org)
  • [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 the stomach (GAPPS). (wikipedia.org)
  • Goblet cell hyperplasia is the precursor lesion of adenomas and dysplasia in the classical colorectal cancer pathway, of sessile serrated adenomas and serrated dysplasia in the serrated colorectal cancer pathway, and of flat and elevated dysplasia and dysplasia-associated lesions or masses in IIBD-associated intestinal cancers. (biomedcentral.com)
  • Diet-induced obesity led to altered acetylation of lysine 27 on histone H3 (H3K27ac) and to altered monomethylation of lysine 4 on histone H3 (H3K4me1) at numerous loci, with concomitant changes in the expression of genes that were functionally relevant to intestinal cancers. (biomedcentral.com)
  • Micrographs (H&E stain) Cancer - Invasive adenocarcinoma (the most common type of colorectal cancer). (wikipedia.org)
  • Invasive adenocarcinoma commonly displays: Varying degrees of gland formation with tall columnar cells Frequently desmoplasia Dirty necrosis, consisting of extensive central necrosis with granular eosinophilic karyorrhectic cell detritus. (wikipedia.org)
  • Tunnel clusters have been separated by Fluhmann into two subcategories: Type Aand Type B. Although type A and B tunnel clusters are often intermixed, their distinctionis important as they each pose their own relatively unique problems in the discriminationfrom invasive adenocarcinoma. (fliphtml5.com)
  • Primary mucinous adenocarcinoma is an extremely rare type of bladder cancer, with aggressive behavior and poor response to chemotherapy and radiotherapy. (bvsalud.org)
  • Primary adenocarcinomas of the vulva are rare and especially the villoglandular mucinous adenocarcinoma of intestinal type is rare variant of vulvar adenocarcinoma. (hindawi.com)
  • Malignancy occurs only in mucinous cysts. (medscape.com)
  • Mismatch repair deficiency occurs in 5% to 10% of patients with rectal adenocarcinomas. (cancer.gov)
  • Inflammatory Fibroid Polyp, Lower Gastro-Intestinal Tract. (booksdo.com)
  • Hepatic adenoma, inflammatory type, with associated ischemic necrosis and extensive hemorrhage. (ocu-radiology.jp)
  • The intricate molecular mechanisms involved in the regenerative process of the normal intestine and the identity of putative somatic intestinal stem cells have become clear. (mdpi.com)
  • Familial polyposis syndromes are divided into 2 major groups based on the presence of adenomas or hamartomas. (medscape.com)
  • The most common form of colon cancer is adenocarcinoma, constituting between 95% and 98% of all cases of colorectal cancer. (wikipedia.org)
  • H&E stained sections: (A) Serrated adenocarcinoma: epithelial serrations or tufts (thick blue arrow), abundant eosinophilic or clear cytoplasm, vesicular basal nuclei with preserved polarity. (wikipedia.org)
  • Mycobacterium avium subspecies paratuberculosis (MAP), the cause of a chronic intestinal disease in domestic and wild ruminants, is one suspected cause of IIBD. (biomedcentral.com)
  • Histologically, most ductal adenocarcinomas are composed of glandlike structures embedded in an abundant desmoplastic stroma. (coek.info)
  • Treatment of CRC cells with MS-444 resulted in growth inhibition and increased apoptotic gene expression, while similar treatment doses in non-transformed intestinal cells had no appreciable effects. (oncotarget.com)