## Core Concept
Drug-induced lupus erythematosus (DILE) is a variant of lupus erythematosus that is caused by certain medications. It shares some clinical and serological features with systemic lupus erythematosus (SLE) but typically resolves upon withdrawal of the offending drug. The condition can mimic SLE but often presents with less severity and fewer organ systems involved.
## Why the Correct Answer is Right
The correct answer, , is associated with drug-induced lupus because certain medications can trigger an autoimmune response leading to the production of autoantibodies and clinical manifestations similar to SLE. Drugs commonly implicated include hydralazine, procainamide, isoniazid, and minocycline, among others. These drugs can induce the production of antinuclear antibodies (ANA) and sometimes lead to clinical symptoms of lupus.
## Why Each Wrong Option is Incorrect
* **Option A:** is known to cause drug-induced lupus.
* **Option B:** is also a well-documented cause of drug-induced lupus.
* **Option C:** can cause drug-induced lupus.
## Clinical Pearl / High-Yield Fact
A key clinical pearl is that drug-induced lupus tends to have a more limited presentation compared to SLE, often sparing the kidneys and central nervous system. Also, the ANA pattern in DILE is often less complex than in SLE. A high index of suspicion is necessary for diagnosing DILE, and it is crucial to consider the temporal relationship between drug exposure and the onset of symptoms.
## Correct Answer Line
**Correct Answer: D. **
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