The sinus tract was found to originate from the region below the masseter muscle. On closer inspection, a fibrous capsule was detected which on exploration yielded the wooden splinter (Fig. 4).

A. Mutalib, C. Riddell, A. D. Osborne, Studies on the Pathogenesis of Staphylococcal Osteomyelitis in Chickens. II. Role of the Respiratory Tract as a Route of ...