**Core Concept**
Caisson's disease, also known as decompression sickness, occurs when rapid changes in pressure cause gases dissolved in the bloodstream to form bubbles in the body's tissues. This condition is a consequence of the body's inability to dissipate these gases through respiration and circulation efficiently.

**Why the Correct Answer is Right**
Decompression sickness typically affects scuba divers and individuals working in environments with rapid pressure changes. The formation of gas bubbles in the bloodstream is a result of the body's inability to equilibrate with the surrounding pressure. This leads to a phenomenon known as gas embolism, where the bubbles obstruct blood flow and cause tissue damage. The clinical manifestations of Caisson's disease can range from mild to severe, including joint pain, skin rash, and even neurological symptoms.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it doesn't specify the condition associated with rapid pressure changes. While it's related to the topic, it's not the correct answer.
**Option B:** This option is incorrect because it doesn't accurately describe the condition caused by rapid decompression. It might be a distractor related to another topic.

**Clinical Pearl / High-Yield Fact**
A key aspect of managing Caisson's disease is the administration of 100% oxygen therapy, which helps to reduce the size of gas bubbles in the bloodstream and alleviate symptoms. Additionally, it's essential to gradually increase the pressure to prevent further bubble formation.

**Correct Answer:** C. Decompression sickness (Caisson's disease)