**Core Concept**
Haemorrhagic pleural effusion is a type of pleural effusion characterized by the presence of blood in the pleural space. It can be caused by various conditions that lead to bleeding or trauma to the pleura, lungs, or adjacent structures.

**Why the Correct Answer is Right**
Haemorrhagic pleural effusion can occur due to direct or indirect trauma to the chest, malignancies, tuberculosis, and infections such as pneumonia or empyema. In these conditions, the bleeding can be caused by damage to the blood vessels, inflammation, or the release of pro-coagulant substances. The pleural fluid analysis may show an increased level of red blood cells, haemoglobin, and fibrinogen, which can help in diagnosing the cause of the effusion.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect as it does not specify the cause of haemorrhagic pleural effusion. Without more information, it is difficult to determine whether this option is correct or not.
* **Option B:** This option is incorrect as it is not a known cause of haemorrhagic pleural effusion. While malignancies can cause pleural effusions, they are more commonly associated with transudative or exudative effusions rather than haemorrhagic effusions.
* **Option C:** This option is incorrect as it is not a known cause of haemorrhagic pleural effusion. While infections such as pneumonia or empyema can cause pleural effusions, they are more commonly associated with exudative effusions rather than haemorrhagic effusions.
* **Option D:** This option is incorrect as it is not a known cause of haemorrhagic pleural effusion. While tuberculosis can cause pleural effusions, they are more commonly associated with lymphocytic pleural effusions rather than haemorrhagic effusions.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that haemorrhagic pleural effusion is often associated with a high level of fibrinogen in the pleural fluid, which can help in differentiating it from other types of pleural effusions.

**Correct Answer: D.** Tuberculosis