Paltauf haemorrhages in drowning are seen in the following organ:
**Core Concept**
Paltauf haemorrhages are a type of petechial haemorrhage observed in individuals who have drowned, specifically in the context of immersion in cold water. These haemorrhages are a result of the unique physiological response to cold water drowning.
**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of cold water drowning. When an individual is submerged in cold water, the body's response is to constrict blood vessels and shunt blood to the core to conserve heat. This leads to increased pressure in the pulmonary and systemic circulation, causing micro-bleeding in the lungs and other organs. Paltauf haemorrhages are a characteristic finding in the lungs of individuals who have drowned in cold water.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because Paltauf haemorrhages are not typically associated with warm water drowning.
* **Option B:** This option is incorrect because Petechial haemorrhages are a non-specific finding and can be seen in various conditions, including trauma, sepsis, and malignancy.
* **Option C:** This option is incorrect because while Paltauf haemorrhages can be seen in the brain, they are not exclusive to this organ.
**Clinical Pearl / High-Yield Fact**
It's essential to note that Paltauf haemorrhages are a key forensic finding in cases of suspected drowning, particularly in cold water. The presence of these haemorrhages can help differentiate drowning from other causes of death, such as cardiac arrest or trauma.
**Correct Answer:** C. Lungs