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Descriptor Spanish: Absceso Hepático Amebiano. Descriptor Portuguese: Abscesso Hepático Amebiano. Synonyms English: Amoebiasis, Hepatic Hepatic . specific purulent invasive lesion commonly of the liver caused by parasiticamebas abscesso amebiano um conjunto depus no fígado causada porum parasita. Como esperado, o tratamento com dexametasona no modelo murino de abscesso hepático amebiano reduziu o infiltrado inflamatório, no entanto.

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Prevention Amebiasis, being a social problem, its definitive eradication, depends on the improvement of public health measures, adequate sanitation, clean water supplies and above all, better health education.

The primary tumors in the seven patients with calcified liver metastases were colon carcinoma five patientssarcoma one patient and malignant ovarian teratoma one patient.

Repeated liver aspirations without amebaino technique and asepsis may also be responsible. De La Rey N.

amebíase / Entamoeba histolytica

Am J Med ; Undoubtedly the development of a vaccine would be the most economical strategy for the prevention of amebic abdcesso and consequently invasive amebiasis. The clinical manifestations of hepatic amebiasis are so typical that they might suggest the diagnosis in the areas where it is prevalent, such as in Amazonia. This material absceesso almost always sterile, except when a secondary infection has occurred, allowing differential diagnosis from a pyogenic abscess.

Since most of the blood supply from the large gut drains into the right lobe of the liver through the portal system, translocated organisms, such aerobic and anaerobic Enterobacteriaceae, may reach the hepatic sinusoids, being phagocytized most of the time. Clin Infect Dis ; Nevertheless, considering abscwsso very high mortality of the syndromes of rupture, with serious pulmonary implications, pericarditis, or more frequently, subphrenic abscess or even peritonitis with sepsis, surgical treatment can be absolutely necessary, and should be supplemented by antibiotics and other therapy [64,65].

This has not been an easy task in areas in which resources for health care programs are scarce. Bull Soc Path Exot ; Common side effects of metronidazole include nausea, vomiting, headache, abdominal discomfort and a metallic taste mentioned by almost all patients. Treatment The discovery of systemic amebicides, mainly in the nitroimidazole group, with high tissular diffusion, and enhanced capability to cross the wall and reach the interior of the abscess at a very high concentration four times the MIC for Entamoeba histolyticahas been responsible for a dramatic change in the treatment of invasive amebiasis, reducing complications and therefore mortality.


There is little inflammation in contrast with the extension of the lesion. Am J Gastrenterology ; Histopathology shows necrotic areas and vascular congestion. Arch Surg ; In lesions of the left lobe, the elevation is seen wbscesso the opposite side [23].

In cases with severe tenderness, the patient avoids the palpation, even before the examiner reaches the affected area.

Since this drug crosses the placenta and enters the breast milk, its indication must be considered carefully for pregnant cases.

The extension of the hepatic amebiasis to the pericardium, also through a mechanism of contiguity, is responsible for serious syndromes that range from mild pericarditis xbscesso catastrophic purulent pericarditis [38,39,40]. In this region hepatic amebiasis is very important and its high frequency has been reported by different investigators [] Table 1.

Although extremely uncommon in the cases of acute onset, this complication leads to a life threatening emergency, causing cardiac tamponment, and it is invariably lethal [41] Figure All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License.

Comparison of PCR, isoenzyme analysis and antigen detection of Entamoeba histolytica infection. Large liver abscesses of the right lobe in imminence of rupture. The tenderness may be diffuse or localized. Primary hepatic high-grade non-Hodgkin’s lymphoma and chronic hepatitis C infection. In patients with multiple abscesses, or bacterial infection, the leukocytosis may be severe, accompanied by neutrophilia, with an increased percentage of immature forms similar to a leukemoid reaction [21].

Amebic peritonitis following ruptures of an amebic liver abscess. CT findings in hepatosplenic and renal candidiasis. Non-Hodgkin lymphoma of the gastrointestinal tract. In Mexico, a national serosurvey demonstrated that 8. In chronic forms the fever is low and develops more gradually, without chills or sweating. It is important to remember that in accordance with the pharmacokinetics of imidazoles, these drugs have a short stay in the bowel lumen, which is not sufficient for an effective action against the amoebas [53].


Fax 55 91 E-mail: In the abscesses of the left lobe, the mass is palpable at the left hypochondria. Due to the extreme fragility of the lesion wall and because of inner pressure, a rupture may occur at some point of the liver capsule, with extension into the pericardium, pleural and peritoneal cavities [34].

DeCS Server – List Exact Term

Realizou-se US do abdome, que demonstrou grande massa com aspecto em alvo, medindo cerca de 8,0 cm Figura 4. When the mononuclear-macrophage system is unable to destroy the invaders, they subsequently sbscesso cellular injury and secondary bacterial infection, producing clinical symptoms of severe illness that are distinct from those of amebic abscess [15].

J Trop Med Hyg ; In some patients, when diarrhea is absent sigmoidoscopy may show the amebic ulcers [19].

Patients gradually respond to metronidazole therapy alone within a few days to a week, with disappearance of fever, right upper-quadrant pain, anorexia and other usual complaints. Journal of Hepatology, v. An intensive pain localized over the lower rib cage on the right side, a dry cough, shortness of breath, asbcesso severe dyspnea in a patient with hepatic amebiasis, are suggestive symptoms of an initial pulmonary complication, that demands urgent chest radiographic or CT scan amebiqno [33].

Clin Radiol ; Surgical drainage by laparotomy is reserved to patients with secondary infections. Dry cough, chest pain and decreased breath may be due to pleuropulmonary extension of the inflammatory process in the lesions of the superior surface.

The invasion of the lung parenchyma by Entamoeba histolyticaleads to development of interstitial pneumonitis, followed by liquefaction and formation of abbscesso lung abscess.

J Comput Assist Tomogr ;7: Amebiank, macrophages and neutrophils were detected by immunohistochemistry. In the CT scan, an amebic abscess usually appears as a rounded, well-defined, low-density lesion, with an homogeneous septated cavity, and with considerable fluid Figure 7.

Surgical considerations in the management of amoebic liver abscess. Postgrad Med J ;