THE OCCURRENCE of joint involvement during the course of epidemic parotitis has seldom been referred to in the medical literature. Several authors1 merely mention arthritis among the complications of mumps. However, the subject is well discussed in a textbook by Jochmann,2 and it is also commented on briefly in single case reports by Wilson3 and Magida.4 The present paper is based on our recent experience with four cases of mumps complicated by arthritis.
REPORT OF CASES
Case 1.
—L. R., a man aged 28, was admitted to the Willard Parker Hospital on Feb. 18, 1951, with a two-day history of swelling over the parotid glands and of abdominal pain and painful testicular swelling for one day. His past history was not remarkable.Examination revealed a well-developed man who appeared uncomfortable because of the testicular pain. The temperature was 103.4 F., the pulse rate, 90, and the respiration rate, 20 per