1/22. Villous adenoma of the bile ducts: a case report and a review of the reported cases in korea.Villous adenomas are benign epithelial lesions with malignant potential which can occur at any site in the gastrointestinal tract. They are usually encountered in the rectum and colon, less frequently in the small bowel and very rarely in the biliary trees. Nine cases of bile duct villous adenomas have been reported in the literature. However, 4 cases of bile duct villous adenomas have been reported in the Korean literature. Recently, we experienced a case of villous adenoma in the common hepatic duct in a 77-year-old man presenting with obstructive jaundice in which preoperative histologic diagnosis of villous adenoma played a critical role in managing this patient. Herein, we present a case report of bile duct villous adenoma and a review of the reported cases in korea to help define and manage this rare disease entity in the bile ducts. In addition, confusing nomenclature of bile duct adenomas is discussed.- - - - - - - - - - ranking = 1keywords = bile duct, bile, duct (Clic here for more details about this article) |
2/22. Controversy in the treatment of adult long ileocolic intussusception: case report.adult intussusception is an unusual cause of intestinal obstruction. In contrast to children, intussusception in adults is usually due to an identifiable cause. We present a case of an 81-year-old female who was diagnosed with a long intussusception on CT scan of the abdomen. Because of the likelihood of neoplasia, a right hemicolectomy was undertaken, after which the patient recovered well. The correct treatment of adult intussusception is not unanimously agreed upon. We present a case of long intussusception in which partial reduction of viable small bowel before the resection was done by applying gentle traction. This provided sufficient small bowel mesentery length, preventing any damage to superior mesenteric vessels and avoiding unnecessary excision of healthy bowel.- - - - - - - - - - ranking = 0.0077871273943765keywords = duct, obstruction (Clic here for more details about this article) |
3/22. Concurrent tubulovillous adenoma and transitional cell carcinoma associated with diffuse gastric and intestinal metaplasia of the defunctioned ureter.Villous adenoma is a common lesion of the gastrointestinal tract, but it is rare in the ureter. Thus, as far as we know, only one case limited to this location has been described. Intestinal metaplasia of the urothelium is not rare. However, only one case of gastric metaplasia with pseudopyloric glands has been described in the literature. We here report in detail on a tubulovillous adenoma of the ureter associated with diffuse gastric and intestinal metaplasia and a concurrent primary, solid, high grade transitional cell carcinoma, with extensive clear cell change, in a 56-year-old male patient. He had undergone a left nephrectomy for renal tuberculosis twenty years earlier, and the lesions developed in the ureteric stump. To the best of our knowledge, such a combination of lesions has not been reported previously either in the ureter or in the rest of the urinary tract. The coexistence of diverse lesions in our case might represent the pluripotentiality of the urothelium in association with chronic inflammation and neoplastic induction. The present report also emphasizes the metaplastic and malignant potential of a defunctioned urothelial structure. This case is of particular interest, because these coexistent lesions arose simultaneously with an anatomically separate adenocarcinoma of the rectum (Dukes' B). The patient died 76 days after admission. The dismal prognosis of our case was determined by the advanced anatomical stage and the histological high grade of the transitional cell carcinoma of the ureter.- - - - - - - - - - ranking = 0.0059843142721689keywords = duct (Clic here for more details about this article) |
4/22. intussusception induced by villous tumor of the colon: sonographic findings.We report a case of intussusception caused by a villous tumor of the ascending colon in an 82-year-old man. Abdominal sonography showed intussusception in the ascending colon, with a transverse scan demonstrating a multiple concentric ring sign. color Doppler sonography showed blood flow signals in a mass, which was considered to be the lead point of the intussusception. A spontaneous reduction of the intussusception occurred during the examination; sonography then showed a mildly echogenic, mass. The graded compression method revealed that the mass was soft and immobile. colonoscopy confirmed the diagnosis of villous tumor. Sonography helped to make an early diagnosis, allowing successful conservative management of the tumor and the intussusception.- - - - - - - - - - ranking = 0.015989778505239keywords = bile, duct (Clic here for more details about this article) |
5/22. Villous adenoma of the extrahepatic biliary tract: a rare entity.patients presenting with large obstructing extrahepatic biliary tumors often are presumed to have cholangiocarcinoma and are labeled with a grim disease with a poor prognosis, given little hope for a cure, and may actually opt for palliative care only. In some instances, however, the diagnosis is that of biliary adenoma (benign until it undergoes malignant degeneration), which can be confirmed via resection and pathologic evaluation of the lesion. Removal of the tumor in its benign stage then provides curative treatment of the obstructing lesion with excellent patient recovery and overall prognosis. We present a rare instance of observation of the presence of high-grade dysplasia in a large villous adenoma arising from the left hepatic duct with relief of biliary obstruction and curative resection.- - - - - - - - - - ranking = 2.3828271623419keywords = extrahepatic, duct, obstruction (Clic here for more details about this article) |
6/22. Early neoplasias of the gallbladder and bile duct: an "unstable" biliary epithelium?Benign tumours of the biliary tree are rare. In particular, only anecdotal cases of intraductal villous adenomas have been reported. The polyp-cancer sequence has not been observed in the biliary epithelium, in contrast to the paradigm of colorectal carcinogenesis. This report presents the case of a 64-year-old woman with a past history of cholelithiasis who had two early neoplasias involving the biliary epithelium: an adenocarcinoma in situ of the gallbladder and a common bile duct (CBD) villous adenoma with high-grade dysplasia. The tumours presented 4 years apart. The clinical features and combined radiological, cytological, and surgical modalities leading to the diagnosis of intraductal villous adenoma are presented. The endoscopic ultrasound (EUS) characteristics of villous adenoma of the CBD are described. While the prognosis on both occasions appears excellent following curative resections of both tumours detected at an early stage, it is possible that further neoplasia involving the biliary tree may recur. There are currently no data on optimal surveillance modalities. It may be hypothesized that the gallbladder and biliary epithelium share a similar mechanism for carcinogenesis to that observed in the colonic adenomacarcinoma sequence.- - - - - - - - - - ranking = 0.5641995650598keywords = bile duct, bile, duct (Clic here for more details about this article) |
7/22. Laparoscopic resection of a periampullary villous adenoma.BACKGROUND: Adenomas of the duodenal papilla are rare lesions. Because of their malignant potential, resection is mandatory. Options for resection include endoscopic resection, transduodenal local excision, and pancreaticoduodenectomy. This report details a case of periampullary villous adenoma diagnosed endoscopically and resected laparoscopically via a transduodenal approach. CASE REPORT: A healthy 75-year-old woman with heartburn underwent an upper endoscopy for vague right upper abdominal pain. A periampullary tumor was diagnosed. Endoscopic biopsy results were consistent with a villous adenoma, and endoscopic ultrasound showed distal bile duct involvement. The patient underwent laparoscopic transduodenal local excision of the tumor with biliary reconstruction. CONCLUSIONS: Laparoscopic transduodenal resection of periampullary lesions provides advantages similar to those of an endoscopic resection by removal of the tumor using minimally invasive techniques. In addition, laparoscopic surgery maintains the surgical tenents of open transduodenal resection with en bloc tumor resection including the adjacent duodenal wall and ductal structures as necessary. As noted in this case, laparoscopic techniques resect ampullary lesions involving the ductal structures as well. Laparoscopic transduodenal ampullectomy is a valuable treatment option for benign and selected premalignant ampullary lesions.- - - - - - - - - - ranking = 0.12241481584743keywords = bile duct, bile, duct (Clic here for more details about this article) |
8/22. Cystoprostatectomy and neobladder construction for florid cystitis glandularis.cystitis glandularis is a benign proliferative disease of the bladder mucosa with a characteristic histopathologic appearance. If a mass lesion is identified, it is resected transurethrally. More extensive surgical management for severe or recurrent cases is poorly characterized in published studies. We present a patient with multiple rapid recurrences of polypoid masses on the trigone causing irritative voiding symptoms. He developed a low-compliance small-capacity bladder and bilateral ureteral obstruction. The patient underwent total cystoprostatectomy with cavernosal nerve sparing and ileal neobladder construction. We advocate such aggressive surgical management in select cases of this disease.- - - - - - - - - - ranking = 0.0018028131222076keywords = obstruction (Clic here for more details about this article) |
9/22. Tubulovillous adenoma of anal canal: a case report.Tumors arising from the anal canal are usually of epithelial origin and are mostly squamous cell carcinoma or basal cell carcinoma. We present a case of benign anal adenomas arising from the anus, an extremely rare diagnosis. A 78-year-old white man presented with rectal bleeding of several months duration. Examination revealed a 4 cm friable mass attached to the anus by a stalk. At surgery, the mass was grasped with a Babcock forceps and was resected using electrocautery. Microscopic examination revealed a tubulovillus adenoma with no areas of high grade dysplasia or malignant transformation. The squamocolumnar junction was visible at the edges of the lesion confirming the anal origin of the tumor. We believe the tubulovillus adenoma arose from either an anal gland or its duct that opens into the anus. Although seen rarely, it is important to recognize and treat these tumors at an early stage because of their potential to transform into adenocarcinoma.- - - - - - - - - - ranking = 0.0059843142721689keywords = duct (Clic here for more details about this article) |
10/22. pseudomyxoma peritonei arising from colonic polyps.AIMS: pseudomyxoma peritonei may have as its primary site a mucinous gastrointestinal adenoma or carcinoma that gains access to the peritoneal cavity. This manuscript describes this disease arising from a benign or malignant colonic polyp. methods: From a database of over 1000 pseudomyxoma peritonei patients and colorectal carcinomatosis patients, three cases were identified in which the primary tumor site was a colonic polyp. The clinical history and course of these patients were studied. RESULTS: In a review of the clinical management of these patients, all three had an event whereby neoplastic cells from the surface of the colonic polyp could have gained access to the free peritoneal cavity. The patients developed the characteristic pseudomyxoma peritonei syndrome. All three patients were treated with cytoreductive surgery plus perioperative hyperthermic intraperitoneal chemotherapy. CONCLUSIONS: colonic polyps can serve as a source of dysplastic cells whereby pseudomyxoma peritonei can result. Caution to prevent seeding to the free peritoneal cavity during surgery for colonic polyps should be observed. If pseudomyxoma peritonei develops, cytoreductive surgery and perioperative intraperitoneal chemotherapy should be considered for treatment.- - - - - - - - - - ranking = 0.011968628544338keywords = duct (Clic here for more details about this article) |
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