Fig. 6
From: Solitary tracheal B-cell lymphoma in an adult alpaca (Vicugna pacos)
Pathology transverse sections of the trachea at the level of the intraluminal mass a and of the trachea and esophagus at the level of the extra luminal mass b. Note the subepithelial origin of the intraluminal mass (*) from the dorsal wall of the trachea and the absence of adhesions of the extra luminal mass (+) to the esophagus (arrows). White bars represent 1 cm