background: diseases and tumors of the appendix vermiformis are very rare, except acute appendicitis. objectives: this retrospective study was conducted to document the unusual findings in appendectomy specimens. patients and methods: data of 1466 adult patients were gathered retrospectively. appendectomy was performed in 1169 and in 297 patients following a diagnosis of acute appendicitis and ...

It has been suggested that two distinct species exist within what was originally known as Entamoeba histolytica and E. dispar. These are Entamoeba dispar for the nonpathogenic and E. histolytica for the pathogenic fonn. Differentiation of these two organisms is of great clinical importance since they are morphologically indistinguishable and both fonns can infect the human intestinal cavity...

<b>Aim: </b>Amebiasis is a disease caused by protozoon <i>Entamoeba histolytica</i>, that results in amoebic dysentery. While intestinal parasites are the third leading cause of death, especially developing countries, it has been global concern. Bibliometric methods have used parasitology discipline for more than 30 years, however there not any bibliometric study on ameb...

Homosexual persons or human immunodeficiency virus (HIV)-infected patients frequently excrete cysts of nonpathogenic strains of Entamoeba histolytica ("Entamoeba dispar"). However, invasive amoebiasis is rare. We report two patients with AIDS and cytomegalovirus colitis in whom invasive amoebiasis was histologically diagnosed. It is concluded that E. histolytica has to be considered in HIV-infe...

Entamoeba dispar, a common noninvasive parasite, is indistinguishable in its cysts and trophozoite forms from Entamoeba histolytica, the cause of invasive amebiasis, by microscopy. To differentiate the two species seems to be a problem for laboratory diagnosis. Recent experimental studies showed that  E. dispar can be considered pathogenic too. We present a rare case of enteritis due to E. dispar.

1. The vegetative forms of amebae may be developed in vitro from the cysts. 2. The cysts of Entamoeba tetragena and Entamoeba coli each produce only a single vegetative individual. It has not been observed in vitro that a number of daughter amebae, corresponding to the number of nuclei present in the cyst, emerge from the mother cyst, as claimed by Casagrandi and Barbagallo, Schaudinn, and a nu...

background entamoeba histolytica/entamoeba dispar and enterobius vermicularis are the major health problems in the developing countries especially in iran. the prevalence of infection is variable among different social groups in the world. objectives since elderly and mentally retarded are high risk group, the present survey was carried out in order to determine the prevalence of intestinal par...