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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Vet Pathol. 2014 Oct 3;52(5):967–976. doi: 10.1177/0300985814552108

Figure 4.

Figure 4

a. Sternal segment dislocation with an enveloping intrathoracic and extrathoracic callus. The intrathoracic callus is large and protrudes up to 600 μM into the thoracic cavity. The extrathoracic callus (*) extends into the pectoral muscle (PM). An amphophilic amorphous material is present within the dislocated joint and extrudes dorsally into the lower aspect of the intrathoracic callus (arrow head). Figure 4b. Sternal segment dislocation with an extrathoracic callus. The extrathoracic callus (*) is segmentally ossified with marrow formation (arrow head). Intrathoracic callus is absent. Figure 4c. Sternal segment dislocation with an enveloping intrathoracic and extrathoracic callus. The intrathoracic callus is small and protrudes up to 300 μM into the thoracic cavity. The extrathoracic callus (*) is prominent and extends into the pectoral muscle (PM). The extrathoracic callus is beginning to ossify (arrow). An amphophilic amorphous material is present within the dislocated joint (arrow head).