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 31,184 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A patient with a fulminant amebic colitis coexisting with intestinal tuberculosis had a sudden onset of crampy abdominal pain, mucoid diarrhea, anorexia, fever and vomiting with signs of positive peritoneal irritation. Fulminant amebic colitis occurring together with intestinal tuberculosis is an uncommon event and may present an interesting patho-etiological relationship. The diagnosis was proven by histopathologic examination of resected specimen. Subtotal colectomy including segmental resection of ileum, about 80 cm in length, followed by exteriorization of both ends, was performed in an emergency basis. Despite all measures, the patient died on the sixth postoperative day. The exact relationship of fulminant amebic colitis and intestinal tuberculosis is speculative but the possibility of a cause and effect relationship exists. Fulminant amebic colitis may readily be confused with other types of inflammatory bowel disease, such as idiopathic ulcerative colitis, Crohn's disease, perforated diverticulitis and appendicitis with perforation. This report draws attention to the resurgence of tuberculosis and amebiasis in Korea, and the need for the high degree of caution required to detect it.
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PMID:Toxic amebic colitis coexisting with intestinal tuberculosis. 1119

We report cases of amebiasis in 6 human immunodeficiency virus (HIV)-positive male patients. Five were confirmed homosexuals while one was suspected. Three patients had liver abscess and 5 had colitis with duration of 10 days to months. The patients with liver abscess showed a lower incidence of abdominal pain but a higher incidence of concomitant diarrhea. Drainage therapy was effective for rapid afebrile results. Two invasive colitis cases died from perforation. This may have been due to delayed diagnosis. Invasive amebiasis is not common even in HIV-infected individuals. Among Japanese homosexual men, however, it may cause symptomatic diseases.
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PMID:Amebiasis in Japanese homosexual men with human immunodeficiency virus infection. 1150 93

We describe the pathology of a unique case of Fallopian tube amebiasis, associated with hydrosalpinx, in a 21-year-old woman. She complained of lower abdominal pain, had a foul-smelling green vaginal discharge and fever during one week. There was a discrete increase in body temperature and a painful abdominal palpation at the lower right side, with signs of local peritoneal irritation. Pathological examination showed a marked dilatation of the fallopian tube and hydrosalpinx. Microscopic examination showed a poorly formed granuloma composed of large macrophages with many Entamoeba histolytica trophozoites inside the fallopian tube. Even though it is a rare disease the correct diagnosis of female genital tract amebiasis is of great importance for the indication of proper therapy.
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PMID:Salpingitis due to Entamoeba histolytica. 1198 Jun 11

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

Radical surgery for fulminant amoebic colitis leads to extremely high mortality; however, resective surgery is mandatory if a patient develops massive fecal peritonitis. We herein report an extremely rare case of fulminant amoebic colitis with multiple perforations, which was successfully treated by staged surgical procedures. A 48-year-old man who had been treated with predonisolone under a diagnosis of ulcerative colitis was admitted. Biopsy specimens from the colonic mucosa revealed Entamoeba histolytica. On the day of diagnosis, he developed severe abdominal pain and underwent emergency laparoptomy, showing total colonic gangrene with multiple perforations associated with massive fecal peritonitis. Subtotal colectomy, mucous fistula of the rectosigmoid, and ileostomy were performed. He recovered well although disseminated intravascular coagulopathy developed postoperatively. As the middle and upper part of rectum was found to be severely stenotic 4 months after surgery, we performed proctectomy, ileal pouch anal canal anastomosis, and diverting ileostomy, which was reversed 6 months later. The patient has been well with satisfactory anal function 37 months after the initial surgery. This case suggests that (1). early and accurate diagnosis of amoebiasis is important to avoid surgical intervention, and (2). staged surgery including total colectomy should be considered as one of the treatment choices even in patients with total necrotizing amoebic colitis.
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PMID:Fulminant amoebic colitis with perforation successfully treated by staged surgery: a case report. 1256 Sep 29

A 31-yr-old man presented with a 1-wk history of fever, chills, weakness, headaches, and a significant 20-lb weight loss over the preceding 2 months. His past medical history was relevant for liver amebiasis during childhood. Two days before admission, the patient noticed jaundice. He denied abdominal pain or other GI symptoms, and there was no history of alcohol intake, medications, or illicit drugs. His physical examination revealed generalized jaundice, hepatosplenomegaly, and bilateral leg edema. Neurologically, the patient was agitated, with periods of disorientation, and he had bilateral flapping. His blood tests revealed pancytopenia, renal failure, liver failure, and coagulopathy. Because the patient had a fever, hepatosplenomegaly, and pancytopenia, a further workup also included a bone marrow and liver biopsy. No conclusive diagnosis could be made from the above tests, and the patient died 5 days after admission. Postmortem evaluation, including flow cytometry and gene rearrangement in the tissue obtained from the liver, revealed large B cell lymphoma. This case illustrates an unusual presentation of hepatic non-Hodgkin's lymphoma. Current information regarding this entity is scant, mainly owing to its rarity. We present a review of the literature, including the incidence, presentation, treatment, and prognosis of primary hepatic lymphoma.
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PMID:Primary hepatic non-Hodgkin's lymphomas: case report and review of the literature. 1468 34

Gastrointestinal Schistosomiasis and Amebiasis are uncommon in the western world, while such infections are frequent in the African community. In addition to the problems associated with the clinical symptoms of these parasitic infections, it is important to stress the increase in cancer of the Gastro-Intestinal (GI) tract. In this study we evaluate the prevalence of cancer in patients affected by chronic inflammatory diseases caused by the above named parasites. In three years, from January 2000 to December 2003, we observed a total of 1199 subject. Of these, 950 presented with complaints of diarrhoea, vomiting, abdominal pain, melena, hematemesis, rectal discharges and alteration of bowel habits. A total of 818 patients were evaluated in Uganda (Mulago and Arua hospitals) and 381 at Luisa Guidotti Hospital in Zimbabwe. An exhaustive clinical history was collected for each patient and then physical and laboratory examinations were performed. The clinical files of all patients previously admitted to the respective hospitals were obtained and the information taken from these files was then integrated with our clinical findings. Subjects who were found free of gastro-intestinal disease after examinations and did not have a clinical history of infective GI disease but presented with other pathologies, were regarded as control group. The control group was composed of 249 subjects. The subjects who were positive on examination underwent further investigations. The number of patients affected by schistosomiasis and amebiasis were 221 and 224 respectively. The number of patients who suffered from aspecific enterocolitis was 454, intestinal tuberculosis was present in 21 patients and we found 30 patients with esophageal candidiasis. Patients who had the above mentioned GI diseases were then divided into 3 groups. First group was composed of patients who had a clinical history of infective GI diseases and were re-admitted for similar symptoms, and on examination were positive for the presence of the same infective GI diseases. Such patients were placed in the Chronic group. The second group was formed of patients who had previously undergone treatment for infective GI diseases but on readmission were found free of infective GI disease, and this group was described as the Cured group. They had symptoms associated with other pathologies. A third group, which we described as the Acute group was composed of patients who did not have any previous case of GI infection and were admitted for the first time. Such patients were found positive on examination for infective GI diseases. In the 950 patients, we found a total of 45 tumors. The tumors were prevalent (42 tumors) in the chronic group. In 34 patients the tumor was in the colo-rectal region, in 3 patients in the stomach, in 4 patients in the esophagus and 1 patient had cancer in the small bowel. Our results show a strong association between the chronic infection of the GI tract and the likelihood to develop tumors. However, it is not clear which biological mechanisms are implicated in such transformations. They may depend on the chronic inflammation of the GI mucous which permits the entrance of carcinogenic materials or on the effects of mutagenic products produced by the parasites or both.
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PMID:Risk of cancer onset in sub-Saharan Africans affected with chronic gastrointestinal parasitic diseases. 1656 65

Invasive amoebiasis is rarely seen in human immunodeficiency virus (HIV)-infected individuals, even in endemic areas. By contrast, cytomegalovirus (CMV) disease is recognized as a major clinical problem in acquired immunodeficiency syndrome patients. A 34-year-old HIV-infected man with amoeba colitis, disseminated Mycobacterium avian complex and CMV infection with cecum perforation, presented with the initial symptoms of fever, shortness of breath and painful sensation when swallowing. He was treated with fluconazole, trimethoprim-sulfamethoxazole and hydrocortisone under the impression of esophageal candidiasis and Pneumocystis jiroveci pneumonia. However, diarrhea and abdominal pain developed on day 6 of hospitalization. Invasive amoebiasis and CMV colitis was diagnosed after examination of colon pathological specimens. Emergent laparotomy was performed. Right hemicolectomy with double barrel ileostomy and colostomy was done due to perforation of the cecum. Iodoquinol was given, followed by metronidazole 14 days afterwards. He underwent closure of double barrel ileostomy and colostomy 5 months later. This case illustrates the diagnostic challenge of caring for acquired immunodeficiency syndrome persons with multiple illnesses and medication use. CMV infection, amoebic colitis and possibly corticosteroid may have played a role in colon perforation in our patient.
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PMID:Colon perforation with peritonitis in an acquired immunodeficiency syndrome patient due to cytomegalovirus and amoebic colitis. 1649 64

A 41-year-old man presenting with lower abdominal pain, constipation, abdominal distention, fever (37.5 degrees C) and fatigue was evaluated, and a mass localized to the left lower abdomen was identified. Radiographic and colonoscopic examination revealed a stricture 10 cm in length localized to the sigmoid-descending colon junction. The diagnosis of amebiasis was confirmed by histological examination of a biopsy specimen taken from the stricture and stool examination. One month after the initiation of metronidazole treatment, complete clinical and laboratory improvement was observed. In the differential diagnosis of colonic stricture, amebiasis should also be considered.
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PMID:A rare cause of colonic stricture: amebiasis. 1654 56

Herein we report the case of hepatic amoebic abscesses in an HIV-positive Italian seaman with a history of promiscuous heterosexual intercourse. In October 2004, the patient was hospitalized because of fever and recurring abdominal pain. Abdominal ultrasonography revealed six hepatic hypoechoid oval lesions with hyperechoid margins. Stool samples were negative for parasites and bacteria, and serology for Entamoeba histolytica was also negative. Therapy with meropenem plus levofloxacin was initiated. After a partial resolution of clinical symptoms and reduction of three hepatic lesions, the patient was again hospitalized in December 2004, because of recurring intense pain at the right hypochondrium and fever. At this time, one hepatic lesion at the sixth segment was enlarged, two lesions were unchanged, and the remaining three smaller abscesses were resolved. Serum antibodies for E. histolytica and amoebic antigens on the largest abscess drainage were positive; moreover, E. histolytica was also identified on drainage fluid with polymerase chain reaction (PCR). Therapy with metronidazole followed by paromomycin improved both symptoms and radiographic images. This case report suggests that in HIV-infected patients, invasive amoebiasis should be considered and atypical aspects, such as multiple hepatic lesions, delayed positivity of serology for E. histolytica, and possible bacterial superinfection should be evaluated.
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PMID:Amoebic hepatic abscesses in an HIV-positive patient. 1698 46


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