Presence Of Mucosal Changes Research Articles

Histopathologic and genomic profile characteristics of biliary cancers related to pancreaticobiliary maljunction.

527 Background: Pancreaticobiliary maljunction (PBM) is a congenital malformation in which the pancreatic duct and bile duct anatomically merge outside the duodenal wall, and is associated with a high rate of biliary cancer. It has been reported that TP53 and KRAS mutations are found not only in the cancerous area but also in the noncancerous area. However, there is no report of precise mapping of genetic mutations throughout the gallbladder and bile ducts. Methods: Ninety-seven patients (including 31 patients with biliary cancer) who underwent cholecystectomy and cholangiectomy for PBM between 1990 and 2023 at our hospital and affiliated hospitals were included in the study, and consent forms were obtained from 36 patients. The panel targeting 60 genes frequently identified in biliary tract cancer was created in-house and deep sequenced to compare with clinicopathological features. To date, we have analyzed 4 patients with biliary tract cancer and 5 patients without it (with prophylactic resection). The same analysis was also performed on cancerous and noncancerous parts of patients of gallbladder cancer and cholangiocarcinoma without confluence abnormalities for comparison. Results: A total of 33 Samples (7 cancerous parts and 26 noncancerous parts) were examined for biliary tract cancer. We found a variety of functional gene abnormalities, including driver mutations such as TP53, ARID2, and BRCA2, in 9 non-cancerous areas including hyperplasia and normal bile duct mucosa. Some of these mutations were not shared with cancerous areas. On the other hand, in 46 samples from 5 patients who did not develop gallbladder cancer (prophylactic resection), Driver mutations were found in only 3 sites. Pathological findings of dysplasia/hyperplasia in these prophylactic resections were observed in 28 of the 46 sections. In addition, Driver mutations were rarely observed in noncancerous areas in patients with normal gallbladder or cholangiocarcinoma. Conclusions: Unlike conventional biliary tract cancers, the patients with PBM showed a great variety of genetic abnormalities in both cancerous and noncancerous areas. On the other hand, in patients of prophylactic resection without cancer, driver mutations were almost completely absent despite the presence of mucosal changes. We believe that these findings can develop better strategy for biliary cancers with PBM.

Prevalencija lezija oralne mukoze kod institucionalizovanih starijih osoba

Background: The presence of mucosal changes and variations is quite high among institutionalized adults. Aim: The present study aimed to determine the prevalence of oral mucosal changes among the institutionalized elderly. Material and method: The presented data originate from research done in the period from May-July 2018 in "Mother Teresa" nursing home in Skopje, Republic of North Macedonia. The investigation included a total number of 70 subjects older than 65 years and it was focused on the presence of mucosal changes. In describing the changes in oral mucosa we have used two differentiated termslesion or pathological change and variation from normal. Results: During the examination of the prevalence of oral mucosal lesions we have found that all the subjects have at least one oral change in their oral cavity. The average number of oral changes among the examined institutionalized elderly is 2,24 ± 0,69. Total number of diagnosed changes on oral mucosa among all 70 subjects was 157. In the group of normal mucosa, variations dominate status fordyce (35.71 %) and coated tongue (28,57%). In the group of pathological changes, there is a domination of the lesions associated with the wearing of prosthetic devices-ulcerous changes caused by the prosthetic devices (15.71%) and stomatitis protetica (10%). Conclusion: In the investigated population, there is a one hundred percent presence of oral changes. Most of them are variations of the oral mucosa. But more important pathological lesions are those associated with wearing prosthetic devices. Also, it is very important to stress that pathological lesions require constant monitoring.

Oral Cavity and Allergy: Meeting the Diagnostic and Therapeutic Challenge

Allergic reactions of the oral mucosa are associated with diverse symptoms and can severely affect patients’ quality of life. Oral mucosa changes such as stomatitis or lichenoid reactions can be the first evidence of a contact allergy, with oral lichenoid reactions after contact with dental restorations, especially amalgam fillings, being among the most common clinical reactions. Additives in foods and oral hygiene products may also cause allergic mucosal reactions. Subjective symptoms, such as pain, burning feeling, or dryness of the oral mucosa, as well as cheilitis or lip and facial swelling, may not only have an allergic component but may also be associated with other diseases that have to be excluded. A complete and thorough clinical examination of the oral mucosa is the first step in the diagnosis of a contact allergy. A detailed history of the patient’s oral care products, drugs, and dental materials is both essential and helpful for the clinician. As a result of the presence of mucosal changes, a patch test can be used for the diagnosis of contact allergy of delayed type. Although the patch test is the standard diagnostic tool for such types of contact allergy, proper interpretation of patch-test results and their clinical relevance can be challenging. As the number of patients with allergies resulting from different materials increases over the years, and a larger number of different dental materials are found to induce an allergy, it is essential for dentists to be aware of the possible allergic reactions to dental materials. Thus, we aimed to develop a systematic approach for contact allergy of the oral cavity, focusing not only on clinical manifestations and diagnosis but also on management and prediction of the risk of oral allergic reactions. A multidisciplinary approach for patients with an oral allergy is essential, with participation of physicians of different specialties, including dentists, allergists and dermatologists.

Oral mucosal lesions and oral hygiene habits in the home‐living elderly

summary A large epidemiological health investigation, the Helsinki Ageing Study (HAS), was performed in 1989–1991 in Helsinki, Finland. We report here the prevalence of oral mucosal lesions in 338 76‐, 81‐ and 86‐year‐old home‐living elderly people, who completed the oral health investigation at the Institute of Dentistry, University of Helsinki. One or more lesions were found in 128 subjects (38%). Fifty‐one per cent of the edentulous complete‐denture wearers and 31% of the elderly with some natural teeth had mucosal lesions. The most common finding was inflammation under the denture, which occurred alone or combined with other lesions in 25% of the denture wearers. The three most common mucosal changes not related to denture wearing were coated changes of the tongue (7%), angular cheilitis (6%) and varicose veins under the tongue (4%). No differences were found in the number of mucosal lesions among the three age groups. Angular cheilitis and inflammation under removable dentures were more frequent in women than in men. However, no other differences were found in the presence of mucosal lesions between sexes. The total number of mucosal lesions correlated positively with the number of medications used daily. Ninety‐six per cent of the subjects with complete dentures, and 98% of those with some natural teeth reported cleaning their dentures at least once a day. Of the denture wearers, 88% reported cleaning their oral mucosa also, as part of their oral hygiene routine. The presence of mucosal lesions was related to self‐reported cleaning of the denture‐bearing mucosa. However, no association was observed between cleaning frequency and presence of mucosal changes.

Oral mucosal lesions and oral hygiene habits in the home-living elderly.

A large epidemiological health investigation, the Helsinki Ageing Study (HAS), was performed in 1989-1991 in Helsinki, Finland. We report here the prevalence of oral mucosal lesions in 338 76-, 81- and 86-year-old home-living elderly people, who completed the oral health investigation at the Institute of Dentistry, University of Helsinki. One or more lesions were found in 128 subjects (38%). Fifty-one per cent of the edentulous complete-denture wearers and 31% of the elderly with some natural teeth had mucosal lesions. The most common finding was inflammation under the denture, which occurred alone or combined with other lesions in 25% of the denture wearers. The three most common mucosal changes not related to denture wearing were coated changes of the tongue (7%), angular cheilitis (6%) and varicose veins under the tongue (4%). No differences were found in the number of mucosal lesions among the three age groups. Angular cheilitis and inflammation under removable dentures were more frequent in women than in men. However, no other differences were found in the presence of mucosal lesions between sexes. The total number of mucosal lesions correlated positively with the number of medications used daily. Ninety-six per cent of the subjects with complete dentures, and 98% of those with some natural teeth reported cleaning their dentures at least once a day. Of the denture wearers, 88% reported cleaning their oral mucosa also, as part of their oral hygiene routine. The presence of mucosal lesions was related to self-reported cleaning of the denture-bearing mucosa. However, no association was observed between cleaning frequency and presence of mucosal changes.

Use of air enema radiography to assess depth of ulceration during acute attacks of ulcerative colitis

Summary Background Acute colitis is usually assessed by means of plain abdominal radiographs, the diagnostic utility of which can be enhanced by barium enema. Colonoscopy can also be useful. The latter methods may be laborious and carry risk. We describe a radiographic technique using air as the contrast medium to show mucosal or deeper ulceration. Methods Of 60 patients undergoing colectomy for acute ulcerative colitis, 35 had air enema radiography and 14 had plain films with sufficient amount of spontaneously occurring gas to allow visualisation of the mucosa, during the 10 days before surgery. The degree of inflammation on air enema films and the extent of histopathological ulceration in colectomy specimens were independently graded and compared with each other. Depth of ulceration was compared with clinical data including a preoperative risk stratification, the APACHE II score. Findings The degree of inflammation on air enema radiography correlated significantly with depth of ulceration at histopathological examination (rs 0·61, p<0·001). Presence of mucosal changes had a close association with deep ulceration extending into the muscularis propria layer or beyond (p<0·001). Air enema radiography had a high sensitivity (0·91) for presence of and specificity (0·75) in the exclusion of deep ulceration, with positive and negative predictive values of 0·88 and 0·80. 42 of 49 patients were correctly classified as regards deep ulcers. The correlation between higher preoperative APACHE II scores and severity of histopathological colitis was weak (rs 0·30, p<0·05). Interpretation Air enema radiography reliably assesses the presence of colonic ulceration in patients with an acute attack of ulcerative colitis. It is a first-line investigation to assess the presence of deeper ulceration in acute colitis.