**Question:** Basophilic stippling is seen in poisoning with -

A. Lead
B. Arsenic
C. Antimony
D. Aluminum

**Core Concept:**

Basophilic stippling refers to the presence of basophilic (pigment-containing) cytoplasmic inclusions observed in the cells of an organism under the microscope, particularly in bone marrow and liver cells, following exposure to specific toxic substances. This phenomenon is commonly seen in the context of heavy-metal poisoning.

**Why the Correct Answer is Right:**

In this case, poisoning with **B. Arsenic** leads to the production of arsenic compounds that accumulate within the cells, causing basophilic stippling. Arsenic, a toxic element, can interfere with cellular processes and lead to the formation of these pigment-containing inclusions when present in the body.

**Why Each Wrong Option is Incorrect:**

1. **A. Lead** poisoning typically results in lead phosphate pigments, not basophilic stippling. Lead phosphate is a different type of pigment and may cause different cellular reactions.
2. **C. Antimony poisoning** usually presents with antimony accumulation within cells, leading to different inclusions. Basophilic stippling is not the typical finding in antimony poisoning.
3. **D. Aluminum** poisoning is associated with aluminum phosphate precipitates, not basophilic stippling. Aluminum poisoning can cause different cellular reactions compared to arsenic poisoning.

**Clinical Pearl:**

Basophilic stippling in the context of poisoning is particularly associated with arsenic exposure, highlighting the importance of recognizing the specific toxicant responsible for the cellular changes observed. This understanding is crucial for making an accurate diagnosis and initiating appropriate treatment in clinical scenarios.