**Core Concept**
Synovial chondromatosis is a rare joint disorder characterized by the presence of metaplastic cartilage within the synovial membrane, leading to the formation of loose bodies within the joint space. This condition is often associated with joint pain, swelling, and limited mobility.

**Why the Correct Answer is Right**
Synovial chondromatosis involves the transformation of synovial cells into chondrocytes, which produce cartilaginous tissue. This process is thought to be triggered by abnormal joint stress, injury, or degenerative changes. The loose bodies formed by this process can cause mechanical obstruction, leading to joint pain and inflammation. The condition is often asymptomatic in its early stages but can progress to cause significant joint damage if left untreated.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as synovial chondromatosis is not typically associated with an underlying infection.
**Option B:** This option is incorrect as synovial chondromatosis does not primarily involve the proliferation of osteoclasts.
**Option C:** This option is incorrect as synovial chondromatosis does not typically present with systemic symptoms such as fever or malaise.

**Clinical Pearl / High-Yield Fact**
Synovial chondromatosis can be challenging to diagnose, and a high index of suspicion is required, especially in cases where joint pain and swelling are persistent and unexplained. A thorough radiological evaluation, including X-rays and MRI scans, is crucial for confirming the diagnosis.

**Correct Answer: C. Synovial chondromatosis is a rare joint disorder characterized by the presence of metaplastic cartilage within the synovial membrane, leading to the formation of loose bodies within the joint space.**