Synovial fluid from a case of pyarthrosis was cultured for fungi, mycobacteria, aerobes and anaerobes with negative results. A Cell Wall Deficient (CWD) form was isolated in numerous cultures which showed the physico-chemical reactions characteristic of wall deficient M. tuberculosis.
LeBar, W. D.; Mattman, L. H.; and Ross, L.
"Isolation of Cell Wall Deficient Mycobacterium tuberculosis from a Case of Chronic Arthritis,"
Henry Ford Hospital Medical Journal
: Vol. 23
Available at: https://scholarlycommons.henryford.com/hfhmedjournal/vol23/iss1/4