True regarding laryngeal TB is?
**Core Concept**
Laryngeal tuberculosis (TB) is a rare form of **extrapulmonary tuberculosis** that affects the larynx. It is usually secondary to pulmonary TB, and its diagnosis is often delayed due to its nonspecific symptoms. The underlying principle being tested involves the **pathophysiology of tuberculosis** and its manifestations in the larynx.
**Why the Correct Answer is Right**
Since the correct answer is not provided, a general explanation of laryngeal TB will be given. Laryngeal TB typically presents with symptoms such as hoarseness, cough, and dysphagia. The **Mycobacterium tuberculosis** bacterium infects the laryngeal mucosa, leading to inflammation and potentially causing damage to the vocal cords.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific details of option A, it's challenging to provide a precise explanation of why it's incorrect. However, incorrect options might include statements about the primary site of TB infection being the larynx, which is rare.
**Option B:** Similarly, without specifics, we can't detail why B is wrong, but if it suggests that laryngeal TB is more common than pulmonary TB, that would be incorrect.
**Option C:** If option C states that laryngeal TB always presents with systemic symptoms of TB, that would be an overstatement, as local symptoms often predominate.
**Option D:** If D claims that laryngeal TB is not treatable with standard anti-TB medications, that would be incorrect, as it generally responds well to **antitubercular therapy**.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that laryngeal TB can mimic other conditions such as laryngeal cancer, making diagnosis challenging. A high index of suspicion and appropriate diagnostic testing, including **laryngoscopy** and **biopsy**, are crucial for accurate diagnosis.
**Correct Answer:** Correct Answer: D. Laryngeal TB is treatable with anti-tubercular drugs.