A rare disease causing carpal tunnel syndrome

Carpal tunnel syndrome (CTS) is a common form of median nerve compression, occurring when the median nerve is compressed at the wrist. Symptoms include hand pain, numbness, and tingling in the median nerve’s distribution. Risk factors are obesity, repetitive wrist movements, pregnancy, genetics, and rheumatoid inflammation. A 75-year-old with ochronosis, causing pigmentation and chronic joint inflammation, presented with bilateral CTS linked to ochronotic arthritis.