Step 1: Understanding the Question:
We need to pick the option that is NOT a standard complication of mumps infection.
Step 2: Key Formula or Approach:
Recall the target organs of mumps virus after it spreads from the parotid gland: testis, pancreas, meninges and, rarely, joints. The complication that does not fit this usual pattern is the answer.
Step 3: Detailed Explanation:
Orchitis is a classic finding in post pubertal males, appearing about a week after parotid swelling starts. Pancreatitis happens because the virus can also infect pancreatic tissue, raising amylase and lipase. Aseptic meningitis is actually a frequent complication, sometimes even without obvious parotitis. Joint disease from mumps, in contrast, is uncommon, and on the rare occasion it appears it is a migratory arthritis moving between a few joints, not a fixed symmetric bilateral arthritis.
Step 4: Final Answer:
Bilateral arthritis is not a recognised complication of mumps, so it is the correct exception, option (D).