What symptom might present with INNER ear involvement in DCS Type 2?

Tinnitus is a symptom that can present in cases of decompression sickness (DCS) Type 2 when there is inner ear involvement. DCS Type 2 primarily affects the neurological system and includes symptoms resulting from damage to the inner ear structures, leading to disruption in equilibrium and auditory function. Tinnitus, which is characterized by ringing, buzzing, or other noises in the ears, can arise due to barotrauma or other effects on the inner ear as a result of nitrogen bubbles forming in the tissues and causing inflammation or damage.

The other symptoms mentioned are typically associated with different manifestations of DCS or other conditions. Skin marbling generally relates to skin symptoms more than inner ear issues, while chronic pain is often indicative of joint or soft tissue involvement in DCS but can be due to other unrelated factors. Joint swelling is more specific to musculoskeletal effects from decompression, rather than directly tied to inner ear problems. Thus, tinnitus is the most relevant symptom tied to inner ear involvement in DCS Type 2.