<prompt> Which of the following is not a complication of mumps: March 2009OrchitisOophoritisEncephalitisNone  <response>: Ans. D i.e. None of the option Known complications of mumps include: Mumps viral infections in adolescent and adult males carry an up to 30 risk that the testes may become infected orchitis or epididymitis, which can be quite painful; about half of these infections result in testicular atrophy, and in rare cases sterility can follow. Spontaneous aboion in about 27 of cases during the first trimester of pregnancy. Mild forms of meningitis in up to 10 of cases 40 of cases occur without parotid swelling Oophoritis inflammation of ovaries in about 5 of adolescent and adult females, but feility is rarely affected. Pancreatitis in about 4 of cases, manifesting as abdominal pain and vomiting Encephalitis very rare, and fatal in about 1 of the cases when it occurs Profound 91 dB or more but rare sensorineural hearing loss, uni- or bilateral. Acute unilateral deafness occurs in about 0.005 of cases Thyroiditis, neuritis, hepatitis, myocarditis etc. 