Radiology of invasive amebiasis of the colon

Cardoso, J.O.M; Kimura, Kenji; Stoopen, M; Lf, Cervantes; Flizondo, L; Churchill, Robert; Moncada, Rogelio

doi:10.2214/ajr.128.6.935

Cited by 55 publications

(19 citation statements)

References 8 publications

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“…6 Invasive amoebiasis (dysentery, liver abscess, colonic perforation, peritonitis, appendicitis and amoeboma) occurs typically between 30 to 60 years of age. 7 The present study showed amoebiasis as the most common cause of colonic perforation.…”

Section: Discussionsupporting

confidence: 52%

Role of histopathological examination in nontraumatic perforation of colon

Singla

Mahajan²,

Agarwal³

et al. 2012

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Aim: Nontraumatic perforation of colon is an uncommon cause of peritonitis requiring early surgical intervention. This study was carried out to determine the prevalence patterns of the different etiologies of nontraumatic perforation of colon. Methods and results: A total of 35 patients with segments of colon or perforation margins removed for perforation were included. Most of the perforations occurred in the caecum, of which two were seen at the ileocaecal junction. The commonest cause was infection (amoebiasis :13 cases and tuberculosis : 5 cases) followed by ulcers of non specific ulcers (12 cases). There were three cases of adenocarcinoma causing secondary perforation and one case of idiopathic intestinal gangrene and volvulus each. Conclusion: In tropics, non traumatic perforations of colon most often involves caecal and ileocaecal segment and the most common etiology is amoebiasis.

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Section: Discussionsupporting

confidence: 52%

Role of histopathological examination in nontraumatic perforation of colon

Singla

Mahajan²,

Agarwal³

et al. 2012

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“…However, it is reported that the case fatality rate is more than 60–80% 2. Risk factors for the emergence of the fulminant form include pregnancy, steroid use, cancer and hypoalimentation, which are immune-compromised conditions 1 4 5…”

Section: Discussionmentioning

confidence: 99%

Fulminant amoebic enteritis that developed in the perinatal period

Goto¹,

Mizushima²,

Matsuoka³

2015

BMJ Case Reports

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SUMMARYWe present a case of a 30-year-old postpartum woman who delivered by caesarean section at 34 weeks. On postoperative day 9, she was admitted to our hospital in shock. Emergency abdominal surgery was performed. Massive purulent ascites collected in the abdominal cavity and was associated with intestinal necrosis, which extended from the ascending colon to one-third of the descending colon. The necrotic lesion was excised, and an artificial anus was constructed at the ileum end. A histological finding on the 15th day indicated the possibility of amoebic enteritis, and the patient was started on metronidazole therapy. The diarrhoea improved dramatically after metronidazole treatment was started. The patient was able to walk unassisted on the 45th day and was subsequently discharged. Amoebic enteritis has been thought to be epidemic in developing countries, but today, the incidence of amoebic enteritis as a sexually transmitted disease is increasing in developed countries. BACKGROUND

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“…The most frequent location is in cecum, cecal appendix and rectum-sigmoidal union in this order. Other reported sites include hepatic flexure, transverse colon and splenic flexure [8]. In our review of literature, we have not identified any previous report of pancreatic or Vater ampulla ameboma.…”

Section: Discussionmentioning

confidence: 83%

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2016

MOJCR

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Aim: An inflammatory and proliferative response to amibiasis infection is known as ameboma, a pseudotumoral lesion; the ascendant colon is the most frequent location.Case report: A male of 65 years-old referring diarrhea and epigastric pain comes to emergency room. At physical exam with tachycardia, tachypnea, abdominal pain located in epigastrium, right iliac fossae and rebound sign. Laboratories report leukocytosis, neutrophilia and eosinophilia. Abdominal ultrasound reports a paracecal abscess, probably secondary to acute appendicitis. Laparotomy was performed finding an infiltrating tumoral lesion in ascendant colon, with perforation and abscess extended to the duodenum, and another tumoral lesion in Vater ampulla. A right extended hemicolectomy was performed with oncological approach and, after 48 hours in the Intensive Care Unit, Whipple procedure was completed. Patient developed amebic colitis with sigmoidal perforation and a subtotal colectomy was completed. After medical treatment, patient presents multiple organic failure and died at 9th day. Histopathological exam reports Vater ampulla ameboma with extension to pancreas, right colon ameboma, and ulcerative amibiasis in colon. Conclusion:At our knowledge this is the first reported case of Vater ampulla ameboma in literature. The diagnosis of this lesions are difficult inclusive after CT scan, but it can be treated medically. It must be considered in the differential diagnosis of colonic tumors and, in case of suspect in an acute abdomen scenario, the source must be treated and resection avoided if possible.

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Radiology of invasive amebiasis of the colon

Cited by 55 publications

References 8 publications

Role of histopathological examination in nontraumatic perforation of colon

Role of histopathological examination in nontraumatic perforation of colon

Fulminant amoebic enteritis that developed in the perinatal period

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