Child having perianal pruritus with following eggs is due to –
💡 Explanation
## **Core Concept**
The question pertains to a common parasitic infection causing perianal pruritus (itching around the anus) in children. The causative organism is identified by its characteristic eggs. This condition is often associated with **Enterobius vermicularis**, also known as the pinworm.
## **Why the Correct Answer is Right**
The correct answer, , is associated with **Enterobius vermicularis**. This parasite causes enterobiasis, a condition characterized by perianal itching, especially at night. The eggs of *Enterobius vermicularis* are oval, measuring approximately 50-60 μm by 20-30 μm, and have a characteristic asymmetric flattening on one side. The eggs are typically laid by the female worm in the perianal region, leading to intense itching and secondary infections.
## **Why Each Wrong Option is Incorrect**
- **Option A:**
- This option does not match the description of *Enterobius vermicularis* eggs.
- **Option B:**
- This might represent another type of parasitic egg but does not match *Enterobius vermicularis*.
- **Option D:**
- Similarly, this does not correspond to the eggs of *Enterobius vermicularis*.
## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that the diagnosis of enterobiasis is often made by observing the eggs on the perianal skin using a flashlight or a swab test in the morning before bathing. The "tape test" is a classic method where a piece of transparent adhesive tape is applied to the perianal area and then examined under a microscope for eggs.