A patient with amebic colitis in which the rare complication of ameboma developed accompanying liver abscess is presented. The diagnosis was made by colonic mucosal biopsy and microscopic stool examination which revealed hematophagous trophzoites of Entamoeba histolytica. All rnanifestations of this patient's illness, including liver abscess, completley reverted to normal after appropriate therapy.
Amebiasis* ; Biopsy ; Colon ; Diagnosis ; Dysentery, Amebic* ; Entamoeba histolytica ; Humans ; Liver Abscess* ; Liver*

An acute fulminant amoebic colits rarely develops as a complication of amoebiasis, and is difficult to diagnose and treat when it occurs. It is a life-threatening disease, and associated with a very high mortality rate. Herein, a case 42-old-year man, who had a generalized peritonitis caused by an acute fulminant amoebic colitis, is reported, with a review of the literature. He died of multiple organ failure, following sepsis and disseminated intravascular coagulation, on the 19th day after his operation, despite treatment with aggressive surgery and anti-amoebic agents. An emergency laparotomy should be considered when an acute fulminant amoebic colitis deteriorates despite the use of intensive anti-amoebic therapy, especially when there is an acute episode suggestive of perforation. A primary total resection of the diseased colon is one of the treatments of choice.
Amebiasis ; Colon ; Disseminated Intravascular Coagulation ; Dysentery, Amebic* ; Emergencies ; Laparotomy ; Mortality ; Multiple Organ Failure ; Peritonitis* ; Sepsis

Metronidazole is a popular selected drug in treatment for amebic hepatic abscess. 30 patients with amebic hepatic abscess received intravenous infusion metronidazole at Bach Mai Hospital. The authors followed disease's process, assess abscess's condition by ultrasound, manifestation of side effects, efficacy of treatment, clinical process,... The results showed that intravenous infusion metronidazole 1,000mg once daily achieved good effects. Clinical and sub-clinical symptoms improved significantly. Results of treatment are excellent and good (66.7% and 33.3%, respectively). There are four side effects including fatigue, metallic taste in the mouth, dizziness. No patient must discontinue or alter therapy
Metronidazole ; Amebiasis ; Therapeutics ; Liver Abscess, Amebic ; hospitals

Amebiasis is an infectious disease caused by Entameba histolytica. Amebiasis remains an extremely important consideration in the differential diagnosis of diarrhea, especially when there is associated bleeding. It is imperative that appropriate studies to establish or exclude the diagnosis of amebiasis be carried out in all patients who present with a clinical and sigmoidoscopic picture of colitis, and that patients treated with metronidazole for amebiasis have adequate clinical and parasitological follow-up. We have experienced one case of intestinal amebiasis with protein losing enteropathy in 30month-old boy whose chief complaint was mild fever, vomiting and blood tinged diarrhea. His laboratory findings were compatible with protein losing enteropathy. The diagnosis of amebiasis is confirmed by observation of trophozoite of E. histolytica in the stools. A brief review with related literatures is also presented.
Amebiasis ; Colitis ; Communicable Diseases ; Diagnosis ; Diagnosis, Differential ; Diarrhea ; Dysentery, Amebic* ; Fever ; Follow-Up Studies ; Hemorrhage ; Humans ; Male ; Metronidazole ; Protein-Losing Enteropathies* ; Tolnaftate ; Trophozoites ; Vomiting

Some cases have reported that amebic colitis leads to serious complications that are caused by a misdiagnosis of an inflammatory bowel disease and consequential ill-managed steroid therapy. Therefore, it should be stressed that the differential diagnosis on such a case is very important. Eosinophilic colitis may reveal its presence as diarrhea, abdominal pain, ascites, and eosinophilic deposits in tissues. Therefore, it is highly necessary to make a differential diagnosis to distinguish eosinophilic colitis from other infectious or inflammatory bowel diseases. We report a case of amebic colitis, which was mistakenly diagnosed as eosinophilic colitis and a liver eosinophilic abscess in a young male who complained of bloody diarrhea and right upper quadrant pain. However, the misdiagnosed steroid therapy did not aggravate the progress of the amebic infection.
Abdominal Pain ; Abscess ; Amoeba ; Ascites ; Colitis ; Diagnosis, Differential ; Diagnostic Errors ; Diarrhea ; Dysentery, Amebic ; Eosinophils ; Humans ; Inflammatory Bowel Diseases ; Liver ; Liver Abscess ; Male ; Steroids

A clinical and laboratory study was conducted on 75 children with dysentery-like stool, who had been admitted or visited to our pediatric department, during 8 months period from January to August 1980. The following results were obtained: One to five years of age group was affected most frequently(47%), Shigella flexneri was identified by stool culture in 23 cases(30%) and Entameba histolytica in 13 cases(17%). In bacillary dysentery group, fever was the most common symptom occuring in 83%, followed by abdominal pain in 35%. vomiting in 26% and convulsion in 22%. In amoebic dysentery group, fever was noted in 31% and convulsion in 8%, showing some contrast to the frequency of fever & CNS manifestation. About the character of diarrheal stool, 83% of bacillary dysentery group showed bloody, mucoid stool and 62% of amoebic dysentery group mucoid ones. Frequency of diarrhea was 11 times per day or more in 73% of bacillary dysentery patients, and 10 times per day or lese in 92% of amoebic dysentery patients. The result of sensitivity test of isolated Shigella to various antibiotics were as follow : 100% sensitive to kanamycin, gentamicin, amikacin, cephaloridine & rifampin, 87% to nalidixic acid, an4 4.3% to sulfonamide, chloramphcnicol, streptomycin, tetracyclin, ampicillin & bactrim. And 22 out of 23 isolated Shigella strains revealed multiple- drug-resistance pattern on 6 or more antibiotics.
Abdominal Pain ; Amebiasis ; Amikacin ; Ampicillin ; Anti-Bacterial Agents ; Cephaloridine ; Child* ; Daegu* ; Diarrhea ; Dysentery, Amebic ; Dysentery, Bacillary ; Fever ; Gentamicins ; Humans ; Kanamycin ; Nalidixic Acid ; Rifampin ; Seizures ; Shigella ; Shigella flexneri ; Streptomycin ; Trimethoprim, Sulfamethoxazole Drug Combination ; Vomiting

PURPOSE: To report 4 cases of Acanthamoeba keratitis related to orthokeratology lens overnight wear. METHODS: Four patients had histories of overnight orthkeratology lens wear of 10 months to 3 years when they presented with corneal ulcers. RESULTS: The organism isolated by corneal scraping was Aanthamoeba. The patients were treated with polyhexamethylene biguanide (PHMB), and chlorhexidine, resulting in a resolution of ocular inflammation. CONCLUSION: The risk of Acanthamoeba keratitis as a potential complication of overnight orthkeratology should be considered.
Acanthamoeba Keratitis* ; Acanthamoeba* ; Chlorhexidine ; Humans ; Inflammation ; Ulcer

PURPOSES: In May 29, 1999, the health department in Gumi city received a report from a local pediatrician that three children who attended a kindergarten were diagnosed with amebic dysentery. By May 31, fifteen more children from the same kindergarten were diagnosed with amebic dysentery. We conducted an investigation in order to verify the diagnosis, and to implement appropriate control measures. METHODS: We conducted a questionnaire survey on 264 children in 3 kindergarten in Gumi city. Furthermore, 726 children in 4 kindergarten and 13 academies in Chilgok county whose lunch is supplied by the same unlicensed catering company were monitored for diarrheal symptoms. RESULTS: Of 264 children in Gumi city, 74 children fitted the case definition (attack rate, 28%). Of 726 children in Chilgok county, 50 children were reported to have diarrheal symptoms. The clinical picture was dominated by the following symptoms; abdominal pain (85.1%), fever (83.8%), headache (50.0%), chilling (45.9%), vomiting (28.4%). The median duration of diarrhea was 2 days, and the median frequency of diarrhea was 3 times/day. Salmonella Typhimurium of the same antibiogram pattern were isolated from fifteen cases. However, no evidence of amebiasis was found from laboratory results or epidemiologic pattern. CONCLUSIONS : This epidemic was caused by Salmonella Typhimurium, which were present in lunch supplied by the unlicensed catering company. Improvement of the diagnostic ability in local health centers as well as public health centers and reinforcement of strict protocols regarding appropriate management of catering services should be emphasized
Abdominal Pain ; Academies and Institutes ; Amebiasis* ; Child ; Diagnosis ; Diarrhea ; Disease Outbreaks ; Dysentery, Amebic ; Fever ; Gyeongsangbuk-do* ; Headache ; Humans ; Korea* ; Lunch ; Microbial Sensitivity Tests ; Public Health ; Salmonella Infections* ; Salmonella typhimurium ; Vomiting ; Surveys and Questionnaires

Acanthamoeba cysts are resistant to unfavorable physiological conditions and various disinfectants. Acanthamoeba cysts have 2 walls containing various sugar moieties, and in particular, one third of the inner wall is composed of cellulose. In this study, it has been shown that down-regulation of cellulose synthase by small interfering RNA (siRNA) significantly inhibits the formation of mature Acanthamoeba castellanii cysts. Calcofluor white staining and transmission electron microscopy revealed that siRNA transfected amoeba failed to form an inner wall during encystation and thus are likely to be more vulnerable. In addition, the expression of xylose isomerase, which is involved in cyst wall formation, was not altered in cellulose synthase down-regulated amoeba, indicating that cellulose synthase is a crucial factor for inner wall formation by Acanthamoeba during encystation.
Acanthamoeba castellanii/*enzymology/genetics/metabolism ; Aldose-Ketose Isomerases/*biosynthesis ; Amebiasis/*pathology ; Benzenesulfonates ; Cell Wall/chemistry/genetics/*metabolism ; Cellulose/biosynthesis ; Down-Regulation ; Encephalitis/parasitology ; Glucosyltransferases/*biosynthesis/genetics ; Keratitis/parasitology ; Microscopy, Electron, Transmission ; RNA Interference ; RNA, Small Interfering

No abstract available.
Dysentery, Amebic ; Enterocolitis, Pseudomembranous ; Sigmoidoscopy