All are true about entamoeba histolytica except:
**Core Concept**
Entamoeba histolytica is a protozoan parasite that causes amoebiasis in humans. It primarily infects the large intestine, where it can cause colitis, dysentery, and liver abscesses. The parasite's lifecycle involves both trophozoite and cyst stages.
**Why the Correct Answer is Right**
Entamoeba histolytica invades the intestinal mucosa, causing tissue destruction and bloody diarrhea. The parasite's pathogenicity is attributed to its ability to secrete proteolytic enzymes, such as cysteine proteases, which degrade the extracellular matrix and facilitate invasion. Additionally, E. histolytica can adhere to and migrate across the intestinal epithelium, leading to tissue damage and inflammation.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not provided, so we'll skip it.
**Option B:** This option is not provided, so we'll skip it.
**Option C:** This option is not provided, so we'll skip it.
**Option D:** This option is not provided, so we'll skip it.
**Clinical Pearl / High-Yield Fact**
To differentiate E. histolytica from other amoebic species, stool examination should be performed using a concentration technique, such as the formalin-ether concentration method, to detect cysts or trophozoites. Additionally, serological tests, such as the indirect hemagglutination assay, can be used to confirm the diagnosis.
**Correct Answer:**
(Note: The question text is incomplete, so I couldn't provide a correct answer.)