Eosinophilic abscess in the lymph node is characteristically seen in –
**Core Concept**
Eosinophilic abscesses in lymph nodes are a characteristic feature of a specific parasitic infection. This phenomenon is associated with the body's immune response to the parasite, leading to the accumulation of eosinophils in the affected lymph node.
**Why the Correct Answer is Right**
The correct answer is related to the Churg-Strauss syndrome's connection to a parasitic infection. However, the correct disease associated with eosinophilic abscesses in the lymph node is **Toxocariasis**. Toxocariasis is caused by the Toxocara cati or Toxocara canis parasite, which is commonly found in cats and dogs. When this parasite infects humans, it can lead to eosinophilic abscesses in lymph nodes, particularly in the mediastinum. This is due to the body's immune response to the parasite, which results in the activation of eosinophils and their accumulation in the affected lymph nodes.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it does not specifically relate to eosinophilic abscesses in lymph nodes.
* **Option B:** This option is incorrect because Churg-Strauss syndrome, also known as eosinophilic granulomatosis with polyangiitis, is not characteristically associated with eosinophilic abscesses in lymph nodes.
* **Option C:** This option is incorrect because it does not specifically relate to eosinophilic abscesses in lymph nodes.
**Clinical Pearl / High-Yield Fact**
Toxocariasis should be considered in the differential diagnosis of eosinophilic abscesses in lymph nodes, particularly in patients with a history of exposure to cats or dogs.
**Correct Answer: D. Toxocariasis**