A case report of refractory amebic colitis and literature review

Abstract

Rationale: Amebic colitis has been less prevalent in recent times in China, and the similarity of its symptoms to those of inflammatory bowel disease (IBD) results in the difficulty of early identification and diagnosis. Patient concerns: A 31-year-old male who exhibited intermittent diarrhea and hematochezia was highly suspected as IBD initially. Despite the partial relief of symptoms following the administration of mesalamine, the endoscopic ulcers remained largely unchanged. Diagnoses: Two years after the onset of mesalamine therapy, amebic cysts were detected in stool microscopy and trophozoites were found on the surface of cecal ulcers. The patient was then diagnosed with amebic colitis. Interventions: After 2 rounds of standardized metronidazole treatment, amebic colitis remained refractory until diloxanide was administered. Outcomes: The patient remained asymptomatic, and the mucosa of colon was normal during the annual follow-up. Lessons: Individuals newly diagnosed with IBD should undergo essential screening for amebiasis. And the use of steroids should be taken with caution, especially in cases where the effect of mesalamine is limited. For symptomatic intestinal amebiasis, even after the administration of tissue amebicides, the continued use of luminal amebicides is necessary to prevent recurrence.

Colic ameboma mimicking colic cancer: A case report

“…Infection occurs predominantly by cyst ingestion through fecally contaminated food or contaminated water. Oral–anal contact (homosexual population) is also a way to spread the disease [ 3 ] Infections are seen worldwide. The overall worldwide prevalence of Entamoeba infection is 3.6 % as the highest incidence is found in tropical countries and the developing regions of the world, where inadequate sanitation and overpopulation facilitate transmission [ 3 ].…”

“…Amoebiasis diagnosis can be complex, as it can imitate diseases like bacterial liver abscesses, or inflammatory bowel disorders. In rare cases, the formation of a mass-like lesion or amoeboma may be easily misinterpreted as a tumor [ 3 , 4 ].…”

Colic ameboma mimicking colic cancer: A case report

“…Infection occurs predominantly by cyst ingestion through fecally contaminated food or contaminated water. Oral–anal contact (homosexual population) is also a way to spread the disease [ 3 ] Infections are seen worldwide. The overall worldwide prevalence of Entamoeba infection is 3.6 % as the highest incidence is found in tropical countries and the developing regions of the world, where inadequate sanitation and overpopulation facilitate transmission [ 3 ].…”

“…Amoebiasis diagnosis can be complex, as it can imitate diseases like bacterial liver abscesses, or inflammatory bowel disorders. In rare cases, the formation of a mass-like lesion or amoeboma may be easily misinterpreted as a tumor [ 3 , 4 ].…”

Colic ameboma mimicking colic cancer: A case report

“…Infection occurs predominantly by cyst ingestion through fecally contaminated food or contaminated water. Oral–anal contact (homosexual population) is also a way to spread the disease [ 3 ] Infections are seen worldwide. The overall worldwide prevalence of Entamoeba infection is 3.6 % as the highest incidence is found in tropical countries and the developing regions of the world, where inadequate sanitation and overpopulation facilitate transmission [ 3 ].…”

“…Amoebiasis diagnosis can be complex, as it can imitate diseases like bacterial liver abscesses, or inflammatory bowel disorders. In rare cases, the formation of a mass-like lesion or amoeboma may be easily misinterpreted as a tumor [ 3 , 4 ].…”

Colic ameboma mimicking colic cancer: A case report

“…Infection occurs predominantly by cyst ingestion through fecally contaminated food or contaminated water. Oral–anal contact (homosexual population) is also a way to spread the disease [ 3 ] Infections are seen worldwide. The overall worldwide prevalence of Entamoeba infection is 3.6 % as the highest incidence is found in tropical countries and the developing regions of the world, where inadequate sanitation and overpopulation facilitate transmission [ 3 ].…”

“…Amoebiasis diagnosis can be complex, as it can imitate diseases like bacterial liver abscesses, or inflammatory bowel disorders. In rare cases, the formation of a mass-like lesion or amoeboma may be easily misinterpreted as a tumor [ 3 , 4 ].…”