**Core Concept**
Pseudo-Pelger-Huet cells are a type of abnormal neutrophil seen in the peripheral blood smear. They are characterized by bilobed or multi-lobed nuclei with a reduced number of nuclear segments. This phenomenon is associated with various disorders, including myeloid malignancies, bone marrow failure syndromes, and certain infections.

**Why the Correct Answer is Right**
Pseudo-Pelger-Huet cells are seen in conditions where there is a disruption in the normal process of neutrophil maturation in the bone marrow. The bilobed or multi-lobed nuclei are thought to result from an abnormality in the process of nuclear segmentation, which is controlled by the enzyme alkaline phosphatase. In conditions like myelodysplastic syndrome (MDS), the bone marrow is unable to produce normal neutrophils, leading to the presence of pseudo-Pelger-Huet cells in the peripheral blood.

**Why Each Wrong Option is Incorrect**
* **Option A:** While certain infections might lead to changes in the peripheral blood smear, pseudo-Pelger-Huet cells are not typically seen in these conditions.
* **Option B:** Bone marrow failure syndromes like aplastic anemia do not typically present with pseudo-Pelger-Huet cells.
* **Option C:** This option is not provided, so it will be skipped.

**Clinical Pearl / High-Yield Fact**
Pseudo-Pelger-Huet cells can be a clue to the presence of a myeloid malignancy or a bone marrow failure syndrome, and their presence should prompt further investigation into the underlying cause.

**Correct Answer:** D.