A year-old man presented with rectal pain and bleeding secondary to ulcerated, necrotic rectal and cecal masses that resembled colorectal. Tratamiento quirurgico de la colitis amibiana fulminante Cervantes LF, Sanchez ME, Santillan JMTratamiento medico del ameboma del ciego y colon. How this ameboma develops is still a (A) Note a diffuse antimesenteric ameboma narrowing the Guarner V: Tratamiento de la parasitosis producida por.

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We report a rare case of a cecal ameboma stressing the importance of a multidisciplinary approach and the effectiveness of medical therapy. Ingested RBCs are not rtatamiento seen and in the absence of this diagnostic characteristic E. Teaching and Research Direction. Intestinal invasion of EH results in colonic mucosal ulceration and give rise to the classic “flask-shaped” ulcers covered with white slough.

Abdominal examination was soft, with palpable mass and tenderness in right lower-quadrant. Recibido trafamiento 10 de mayo de ; aceptado el 06 de julio de This is a 52 years old, Mexican-mestizo female, presented to our gastrointestinal emergency unit with a history of a week right lower quadrant abdominal pain, intermittent fever, bloating, tenesmus and mucus discharge in the stools.

In addition, amebic trophozoites were documented within the exudative tissue. Clinical presentation ranges from mild diarrhoea episodes to dysentery and liver abscess. Because of its insidious and variable clinical presentation only few cases are diagnosed previous to surgical intervention.

Success of medical therapy in a rare case of cecal ameboma | Revista de Gastroenterología de México

tratzmiento Multiple “flask-shaped” ulcers were documented on the surrounding mucosa and several endoscopic biopsies were taken. However, in the vast majority of cases, amebomas are confirmed when surgery was performed by preliminary diagnosis of carcinoma, acute appendicitis, lymphoma or after histological evaluation of a colonic mass discovered unexpectedly during surgery. However, it is known that even after years of the last episode of dysentery, a localized infection in the colon may, rarely, form a segmental mass, called ameboma.


Early therapy with anti-parasitic drugs is the cornerstone for avoid complications in patients with ameboma that are diagnosed previous to urgent surgery.

Amebiasis is the infection of the human gastrointestinal tract by Entamoeba histolytica EHa protozoan parasite that is capable of invading the intestinal mucosa and spreading to tratamiemto organs causing abscesses.

Introduction Amebiasis is the infection of the human gastrointestinal tract by Entamoeba histolytica EHa protozoan parasite that is capable of invading the intestinal mucosa and spreading to other organs causing abscesses. Ameboma mimicking carcinoma of the cecum: Increased severity of amebiasis is noted in children especially newbornsin women who are pregnant or postpartum, corticosteroid users, individuals with malignancy, and in the malnourished patients.

Amebomas are usually solitary, variable in size and can be up to 15 cm in diameter.

A redescription of Entamoeba histolytica Shaudinn, Emended Walker separating it from Entamoeba dispar Brumpt, Si continua navegando, consideramos que acepta su uso. Furthermore, CT scan can help detect spread lesions to other organs. A colonoscopy was performed and showed a bulky-ulcerated mass in the cecum area.

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Zapata aR. In rare cases, patients with long-standing infection can develop exophytic, cicatricial and inflammatory tumors called amebomas. However, Brumpt in suggested the alternative explanation of the existence of two species, one capable of producing invasive disease Entamoeba dysinteriaeand another non-pathogenic species, which he named Entamoeba dispar ED but were the genetic tratakiento provided by Diamond and Clark, which demonstrated the existence of genetic differences between the two amoebas, allowing the actual and formal description of EH as the cause of amebiasis and ED as a commensal in the large bowel.


Nevertheless, amebiasis also occurs sporadically in the temperate climates of developed countries and in some risk groups.

Endocopic biopsy sample of a colonic ulcer showing inflammatory infiltrate Entamoeba histolytica trophozoites and trophozoites containing numerous phagocytosed red blood cells. Contrast-enhanced tomography and colonos-copy are sensitive tools for the workshop of differential diagnosis of a cecal mass.

This occurs more frequently in patients untreated or inadequately treated during the course of an amoebic colitis. The patient was treated with oral metronidazole for 14 days, showing good clinical recovery and was discharged after two weeks due to persistent abdominal pain within the first week after starting anti-parasitic drugs and completing the diagnostic approach. In addition, an anti-amoebic luminal agent eg. Problems in recognition and diagnosis of amebiasis: Caecal amoeboma simulating malignant neoplasia, ileocaecal tuberculosis and Crohn”s disease.

Diagnosis is difficult and in most cases done after surgical interventions due to insidious onset and variability of signs and symptoms. This was interpreted by many researchers as an indication that the parasite had a variable virulence.

Numerous phagocyted red blood cells, which are characteristic of EH, were contained within the trophozoites Figure 2. Ameboma; amebiasis; colonos-copy; parasitic diseases; protozoan infections; Spain. There is no intermediate animal host. Jurado cN. Ameboma, a complication caused by EH invasion of the intestinal wall, is a rare presentation of amebiasis, occurring approximately in 1. Colitis caused by Entamoeba histolytica EH is prevalent in developing countries.