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Query: UMLS:C0085693 (acute appendicitis)
 3,606 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Uncomplicated amebic colitis is readily treated and has a mortality rate of less than 0.5%. Complications necessitating surgical intervention develop in only 6% to 11% of patients with symptomatic disease. However, the mortality rate in these patients ranges from 40% to 100% and stems in part from delays in diagnosis and treatment. Patients with known amebic colitis who show signs of systemic toxicity or of localized or generalized peritonitis are at high risk for complications; surgical consultation should be obtained. Patients who are thought to have acute appendicitis, diverticulitis, or obstructive or perforative carcinoma but have a history of dysentery atypical of that in these conditions should also be evaluated for amebiasis. Such patients should be treated presumptively until the diagnosis of amebic colitis can be excluded.
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PMID:Amebic colitis. Preventing morbidity and mortality from fulminant disease. 286 1

During the past five years, ten documented cases of hepatic amebic abscess have required surgical intervention at Olive View Hospital, Van Nuys, California. Three of the patients underwent laparotomy when an hepatic abscess ruptured into the peritoneal cavity, and two required surgical intervention when an abscess invaded adjacent organs. Another abscess continued to enlarge despite metronidazole therapy and still another became superinfected with bacteria. In the remaining three patients, surgical procedure would have been avoided if the correct diagnosis had been made. In fact, the preoperative diagnosis in five cases was acute appendicitis. All patients survived. The incidence of Entamoeba histolytica infestation is increasing in our community. Although most patients rapidly improve with metronidazole therapy, surgical complications do arise and diagnoses are missed. This series of cases emphasizes the need for surgeons working in Southern California to familiarize themselves with the clinical features, complications and appropriate surgical treatment of amebiasis.
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PMID:Amebic abscess of the liver: surgical aspects. 706 68

A case of colonic amebiasis with no clinical signs of acute appendicitis but with sonographic visualization of an enlarged appendix is reported. As antiamebic therapy resolved the clinical signs and symptoms of the amebiasis, the sonographic appearance of the appendix returned to normal. Thus, an enlarged appendix does not necessarily indicate clinical appendicitis in patients with colonic amebiasis.
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PMID:Transient appendiceal enlargement in a patient with colonic amebiasis: sonographic detection and follow-up. 1093 39

We report a case of appendicitis caused by amebiasis in a 45-year-old Japanese man. He presented to our hospital with bloody stools in June 1998. Sigmoidoscopy disclosed erosion, and a biopsy of the erosion showed colitis caused by Entamoeba histolytica infection. Four months later, he was admitted to our hospital with a small elastic mass and severe pain in the lower quadrant of the abdomen, which was diagnosed as acute appendicitis. He underwent appendectomy. Histopathological examination revealed numerous E. histolytica trophozoites, and we diagnosed acute appendicitis caused by E. histolytica. The patient has been free of symptoms, colonoscopy has revealed no erosion, and biopsy has revealed no E. histolytica for 12 months after the operation.
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PMID:Acute appendicitis caused by amebiasis. 1108 96

Amoebiasis, a disease of worldwide distribution, is endemic in tropical countries with suboptimal sanitation facilities. Isolated amoebic appendicitis (IAA) is regarded as a rare manifestation of the disease globally. Because there are no defined clinical features that distinguish IAA from bacterial appendicitis, diagnosis is usually dependent on histopathological examination. A 9-year retrospective study was undertaken to investigate the clinicopathological aspects of IAA. The main complaints were fever and abdominal pain. None of the patients had dysentery. The pre-operative clinical diagnosis was acute appendicitis and acute abdomen in 13 and 8 patients, respectively. In all cases the intra-operative diagnosis was acute appendicitis. Gross pathological appraisal revealed peritonitis and perforation in 19 and 17 cases, respectively. Histopathological examination of these appendices demonstrated appendiceal ulceration, transmural mixed inflammation, haematophagous amoebic trophozoites and necrosis in all cases. Vascular pathology comprised venous and capillary luminal plugging (11 cases), necrotising small vessel vasculitis (11 cases), thrombophlebitis of medium sized veins (9 cases) and arteritis with associated thrombosis (1 case). Organising fibrinopurulent peritonitis was present in 19 cases. Two appendices that appeared normal macroscopically demonstrated ulceration and inflammation that were confined to the mucosa and submucosa. All of 18 patients who were treated with metronidazole survived without further surgery, while three patients who were untreated succumbed to the disease. Appendicectomy, accurate histopathological appraisal thereof and optimal, timely management of IAA were critical to the favourable outcome in the present study.
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PMID:Isolated amoebic appendicitis. 1211 Dec 2

Amoebic liver abscess is the most common extra-intestinal manifestation of amebiasis with approximately 10% of the world's population infected by this parasite. Actually, incidence of this infection is also increasing in industrialized countries, as a consequence of the more frequent immigration or travelling. Only 3-10% of patients with intestinal amebiasis develop liver abscess. A clinical case of suprainfection of amoebic liver abscess consequent on acute appendicitis is presented.
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PMID:Supra infection of amoebic liver abscess consequent to acute appendicitis. Clinical case. 1273 36

Amebiasis presenting as acute appendicitis is extremely rare. The case of a 38-year-old Hispanic man who presented to the hospital with symptoms and signs suggestive of acute appendicitis is reported. He underwent laparoscopic appendectomy and the pathologic examination of the appendix revealed multiple trophozoites of Entamoeba histolytica. The patient was treated postoperatively with metronidazole for amebiasis, and follow-up stool studies showed no sign of residual infection. The patient has remained asymptomatic.
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PMID:Amebiasis presenting as acute appendicitis. 1798 48

18 patients with complicated forms of intestinal amebiasis were operated on acute appendicitis, liver abscess or total necrotic colitis. Appendectomy, abscess drainage and colon resection were performed respectively. There were no postoperative deaths. Features of amebic appendicitis and total necrotic amebic colitis are described using clinical cases demonstrations. Recommendations for the treatment of these forms of amebiasis are given.
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PMID:[The complicated intestinal amebiasis in emergency surgery]. 1949 60

Acute appendicitis of amebic origin is considered a rare cause of acute appendicitis. We report a case of amebic appendicitis presenting with fever, severe pain in the right lower quadrant of the abdomen and rebound tenderness. Lab investigations revealed neutrophilic leukocytosis. The patient underwent appendectomy. Histopathological examination revealed numerous Entameba histolytica trophozoites in the mucosa of the appendix. Acute appendicitis of amebic origin does not appear frequently. Appendicular amebiasis can give the clinical features of acute appendicitis and should be treated accordingly.
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PMID:Acute amebic appendicitis: report of a rare case. 2104 11

The prevalence and clinical features of the various obstructive lesions in appendectomy specimens studied pathologically with special emphasis on unusualetiological findings were evaluated. The clinic-pathological data of 251 patients who underwent appendectomies for presumed acute appendicitis from January; 2008 to December; 2010; were reviewed retrospectively. Among all appendectomies performed, eleven (4.38%) specimens revealed incidental abnormal pathological diagnoses: Four cases (1.59%) of Enterobiusvermicularis, Ascaris lumbricoides two cases (0.79 %), schistosomiasis eggs in three cases (1.19%), and parasitic amebiasis in two cases (0.79%). None suffered tumor in any appendectomies specimens. Mean age was lower, perforated and gangrenous appendicitis was absent and negative appendectomy rate was higher in patients with unusual appendix pathology.
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PMID:Histopathological findings in appendectomy specimens: a retrospective clinicopathological analysis. 2266 4


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