1/19. US and CT diagnosis of complete cecocolic intussusception caused by an appendiceal mucocele.Appendiceal mucoceles are found in only 0.2-0.3% of all appendectomy materials. Colocolic intussusception of the appendix is also very uncommon. We report the very rare association of these two entities in a 40-year-old patient presenting with intermittent right abdominal pain accompanied by a palpable mass in the right flank. The full diagnosis was made preoperatively by ultrasound and confirmed by helical CT by means of unequivocal signs of intussusception associated with a very suggestive "cup-and-ball" aspect of the mucocele induced by a global mucinous cystadenoma of the appendix. A brief review of the available literature on mucocele is given.- - - - - - - - - - ranking = 1keywords = cystadenoma (Clic here for more details about this article) |
2/19. Appendiceal mucocoele: a case report and review of the literature.Mucocoele of the appendix denotes an obstructive dilatation of the appendiceal lumen due to abnormal accumulation of mucus, which may be related to a variety of pathological conditions. This may be the outcome of various processes. Most important for the surgeon, however, are the mucocoeles that are caused by mucinous cystadenomas and cystadenocarcinomas. In the latter case, a possible rupture of the mucocoele, either spontaneous or accidental, during surgery may result in the clinical condition of pseudomyxoma peritonei, a spread of malignant cells throughout the entire peritoneal cavity in the form of multiple mucinous deposits. It is therefore important both to identify the disease preoperatively and to plan a careful resection to remove the mass. We report one case and present the clinical and diagnostic aspects of this disease.- - - - - - - - - - ranking = 1keywords = cystadenoma (Clic here for more details about this article) |
3/19. Laparoscopic resection of an appendiceal mucocele.A 78-year-old man was incidentally discovered to have an asymptomatic right lower quadrant abdominal mass during physical examination for influenza. CT scan of the abdomen revealed a cystic sausage-shaped lesion arising from the cecum. Diagnostic laparoscopy revealed an appendiceal mucocele. There was no ascites or metastatic peritoneal nodules. Laparoscopic excision of the unruptured appendiceal mucocele was achieved. Histopathologic examination of the mucocele showed epithelial dysplasia, a feature diagnostic of a mucinous cystadenoma. The patient was discharged on postoperative day one and recovered uneventfully. No analgesic was required after surgery. The patient remained well and symptom-free during the follow-up period. The laparoscopic approach allows diagnostic laparoscopy and appendectomy to be performed, and confers the advantages of minimal-access surgery, including the avoidance of a large incision, a better cosmetic outcome, and a short convalescent period.- - - - - - - - - - ranking = 1keywords = cystadenoma (Clic here for more details about this article) |
4/19. mucocele of the appendix: an unusual cause of lower abdominal pain in a patient with ulcerative colitis. A case report and review of literature.The authors report the case of a 60-year-old male patient. In November 2001 he developed intestinal symptoms of bloody diarrhea and abdominal pain. Colononoscopy and biopsy established the diagnosis of ulcerative colitis (proctosigmoiditis). The disease activity was moderate at the beginning. No significant laboratory alterations were found (including CEA, CA19-9), and mesalazine was started orally. He was in remission until November 2003, when he was admitted to our Outpatient Clinic for upper and right lower abdominal pain and bloody diarrhea. colonoscopy found proctosigmoiditis with a moderate activity, gastroscopy revealed chronic gastritis, laboratory data was normal. Treatment was amended with mesalazine clysma and methylprednisolone (16 mg) orally. Symptoms ameliorated; however, right lower abdominal pain persisted. US and CT examination demonstrated a pericecal cystic mass (11 cm x 3.5 cm). At first pericecal abscess was suspected, as the previous US examination (6 mo earlier) had revealed normal findings. Fine needle aspiration was performed. Cytology confirmed the diagnosis of mucocele. The patient underwent partial cecum resection and extirpation of the mucocele. He recovered well and the final histology revealed a cystadenoma of the appendix. Follow up was started. The patient is now free of symptoms. Although primary adenocarcinoma of the appendix is uncommon, the authors emphasize that preoperative diagnosis of an underlying malignancy in a mucocele is important for patient management; however, it is difficult on imaging studies.- - - - - - - - - - ranking = 1keywords = cystadenoma (Clic here for more details about this article) |
5/19. Laparoscopic resection of appendiceal mucinous cystadenoma.Mucinous cystadenoma is a rare lesion of the vermiform appendix and is seldom diagnosed before surgery, although radiologic and ultrasonographic findings have been reported. We present the case of a 65-year-old female with rheumatoid arthritis who presented with general malaise, poor appetite, fever, and right upper and lower quadrant pain of about one week's duration. Abdominal sonography and computed tomography revealed an 8 x 4 x 3 cm cystic lesion of the appendix. Laparoscopic evaluation confirmed this finding and the lesion was resected without rupturing the tumor during manipulation. Laparoscopic surgery provides the advantages of good exposure and evaluation of entire abdominal cavity, as well as more rapid recovery. It is important to avoid tumor rupture during manipulation, and formation of pseudomyxoma peritonei, in case the tumor is malignant.- - - - - - - - - - ranking = 5keywords = cystadenoma (Clic here for more details about this article) |
6/19. Recovery from idiopathic thrombocytopenic purpura (ITP) following right hemicolectomy for mucocele of appendix.A 61-year-old woman with a 2-year medication-free history of idiopathic thrombocytopenic purpura was referred to our hospital complaining of right lower abdominal pain. The platelet count was about 3-4x10(4)/mm3. This patient was diagnosed with mucocele of the appendix on computed tomography and colonoscopy. We performed only right hemicolectomy without splenectomy. The pathological diagnosis was mucinous cystadenoma of the appendix. The platelet count increased to 18.1x10(4)/mm3 on postoperative-day 7, and remained stable, at 20-24x10(4)/mm3, for 14 months after the operation. Platelet-associated immunoglobulin g decreased remarkably after the operation, to 30.2 ng/10(7) cells, from 240 ng/10(7) cells preoperatively. We describe the first case of recovery from idiopathic thrombocytopenic purpura following right hemicolectomy performed for mucocele of the appendix. Considering our patients clinical course, it is possible that mucinous cystadenoma of the appendix may have influenced the thrombocytopenia. Findings in this patient suggest that mucocele of the appendix may be associated with a new diagnosis and idiopathic thrombocytopenic purpura treatment.- - - - - - - - - - ranking = 2keywords = cystadenoma (Clic here for more details about this article) |
7/19. Giant appendiceal mucocele: report of a case and brief review.mucocele of the appendix is a rare lesion, characterized by distension of the lumen due to accumulation of mucoid substance. This disease is often asymptomatic and pre-operative diagnosis is rare. If untreated, one type of mucocele may rupture producing a potentially fatal entity known as pseudomyxoma peritonei. The type of surgical treatment is related to the dimensions and to histology of the mucocele. appendectomy is used for simple mucocele or for cystadenoma. Right hemi-colectomy is recommended for cystadenocarcinoma. In this paper, we report a case of a 51-year-old woman with a mobile, painless mass in the right lower quadrant of abdomen caused by a giant appendiceal mucocele. Imaging showed a large, tubular, cystic structure extending below from the inferior wall of the cecum. Surgery revealed a giant retro-cecal appendix measuring 17 cm in length and 4 cm in diameter. The final pathologic diagnosis was mucocele caused by mucinous cystadenoma.- - - - - - - - - - ranking = 2keywords = cystadenoma (Clic here for more details about this article) |
8/19. mucocele of the appendiceal stump due to benign mucinous cystadenoma.mucocele of the appendix is a rare lesion, characterized by distension of the lumen due to accumulation of mucus material. Correct preoperative diagnosis is seldom achieved. If left untreated, the mucocele may rupture producing a potentially fatal peritoneal spread. The type of surgical treatment is related to the dimensions and histology of the mucocele. In this paper, the case of a 49-year-old woman, with a previous appendectomy, suffering from a painful mass in the right lower quadrant of the abdomen, is reported. Imaging showed a large, cystic structure at the base of the cecum. Surgery revealed a 8x5.5 cm calcified tumor, which was excided together with the appendiceal remnant. Pathological diagnosis was that of a mucocele arising from the appendiceal stump due to the development of a benign mucinous cystadenoma.- - - - - - - - - - ranking = 5keywords = cystadenoma (Clic here for more details about this article) |
9/19. Ruptured appendiceal cystadenoma presenting as right inguinal hernia in a patient with left colon cancer: a case report and review of literature.BACKGROUND: Mucoceles resulting from cystadenomas of the appendix are uncommon. Although rare, rupture of the mucoceles can occur with or without causing any abdominal complaint. There are several reports associating colonic malignancy with cystadenomas of the appendix. Herein, we report an unusual and interesting case of right inguinal hernia associated with left colon cancer. CASE PRESENTATION: A case of ruptured mucocele resulting from cystadenoma of the appendix was presented as right inguinal hernia in a 70-year-old male. The patient underwent colonoscopy, x-ray, ultrasound and computed tomography. Localized pseudomyxoma peritonei associated with adenocarcinoma of the descending colon was diagnosed. The patient underwent segmental resection of the colon, appendectomy, debridement of pseudomyxoma and closure of the internal ring of right inguinal canal. He is free of symptoms in one year follow-up. CONCLUSION: Synchronous colon cancer may occur in patients with appendiceal mucoceles. In such patients, the colon should be investigated and colonoscopy can be performed meticulously in cases of ruptured mucoceles and localized pseudomyxoma peritonei. Surgical intervention is the current choice of management.- - - - - - - - - - ranking = 7keywords = cystadenoma (Clic here for more details about this article) |
10/19. Mucosal hyperplasia (mucocele) of the vermiform appendix. Report of a case.mucocele of the vermiform appendix was the term formerly used to describe all mucin-secreting lesions of the appendix. In actuality, there are three distinct clinicopathologic entities based on histologic differences. These are mucosal hyperplasia, cystadenoma, and mucinous cystadenocarcinoma of the appendix. Mucosal hyperplasia is usually an incidental finding during laparotomy for an unrelated condition. The case presented herein differed in that the patient had a three-month history of abdominal pain with nothing to suggest the presence of appendicitis, and a 3-cm opacification overlying the right iliac bone on x-ray.- - - - - - - - - - ranking = 1keywords = cystadenoma (Clic here for more details about this article) |
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