Which of the following is true about mature cyst of E. Hystolica-
**Core Concept**
The question refers to a mature cyst of Echinococcus granulosus, a parasitic tapeworm that causes cystic echinococcosis (also known as hydatid disease). The mature cyst is a characteristic feature of this infection, and understanding its characteristics is crucial for diagnosis and treatment.
**Why the Correct Answer is Right**
A mature cyst of E. granulosus is typically unilocular, meaning it has a single compartment. The cyst is lined by a germinal layer, which is the site of cell division and proliferation, and a laminated layer, which is composed of concentric layers of collagen fibers. The germinal layer is responsible for the production of new scolices (larval stages of the parasite) and daughter cysts, which can lead to the formation of multiple cysts within the mature cyst.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because a mature cyst of E. granulosus is not typically multilocular, as this term is more commonly associated with the Alveolar echinococcosis caused by Echinococcus multilocularis.
**Option B:** This option is incorrect because a mature cyst of E. granulosus is not typically characterized by a thick, fibrotic wall, as this is more commonly associated with a calcified cyst.
**Clinical Pearl / High-Yield Fact**
It's essential to note that the diagnosis of hydatid disease often relies on imaging studies, such as ultrasound or CT scans, which can reveal the characteristic features of the mature cyst, including its size, location, and appearance.
**Correct Answer:** C.