## **Core Concept**
Dohle bodies are light blue or blue-gray, oval or round, cytoplasmic inclusions seen in neutrophils. They are composed of rough endoplasmic reticulum and ribosomal RNA. Dohle bodies are a sign of accelerated neutrophil production or toxic neutrophil activation.
## **Why the Correct Answer is Right**
The correct answer, **C. Toxic granulation**, is right because Dohle bodies are a type of toxic granulation. They are often seen in neutrophils of patients with severe infections, sepsis, or inflammatory conditions. The presence of Dohle bodies indicates that the bone marrow is rapidly producing neutrophils in response to an acute infection or inflammation.
## **Why Each Wrong Option is Incorrect**
* **Option A:** Auer rods are specific to myeloid lineage cells and are often seen in acute myeloid leukemia (AML). They are not the same as Dohle bodies and are not typically associated with sepsis.
* **Option B:** Specific granules are a type of granule found in neutrophils, but they are not the same as Dohle bodies. Specific granules are smaller and contain different types of enzymes and antimicrobial peptides.
* **Option D:** Azurophilic granules, also known as primary granules, are large granules found in neutrophils that contain myeloperoxidase and other enzymes. While they are related to neutrophil function, they are not Dohle bodies.
## **Clinical Pearl / High-Yield Fact**
The presence of Dohle bodies in neutrophils is a useful indicator of severe infection or sepsis. They can also be seen in other conditions, such as burns, trauma, and severe inflammation. Recognizing Dohle bodies can help clinicians quickly identify patients who may require aggressive treatment.
## **Correct Answer:** . Toxic granulation
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