**Core Concept**
Glucocorticoids are a type of steroid hormone that play a crucial role in the inflammatory response. In the context of tuberculosis (TB), corticosteroids can have a paradoxical effect, exacerbating the disease, especially in certain types of TB. This is due to their immunosuppressive properties, which can lead to an uncontrolled growth of Mycobacterium tuberculosis.

**Why the Correct Answer is Right**
Corticosteroids are contraindicated in TB meningitis because they can lead to an increase in intracranial pressure and worsen the outcome. This is due to their ability to reduce the inflammatory response in the central nervous system, which can result in an uncontrolled spread of the bacteria. Additionally, corticosteroids can also mask the clinical symptoms of TB meningitis, leading to delayed diagnosis and treatment.

**Why Each Wrong Option is Incorrect**
* **Option A:** Corticosteroids are not contraindicated in pulmonary TB, as they can be used in certain cases to reduce inflammation and prevent fibrosis.
* **Option B:** Corticosteroids are not contraindicated in extrapulmonary TB, such as lymph node TB, as they can be used to reduce inflammation and prevent tissue damage.
* **Option C:** Corticosteroids are not contraindicated in TB pleurisy, as they can be used to reduce inflammation and prevent fibrosis.

**Clinical Pearl / High-Yield Fact**
TB meningitis is a medical emergency that requires prompt treatment with antitubercular therapy and corticosteroids should be avoided to prevent exacerbation of the disease.

**Correct Answer: C. TB meningitis.**