Detection of Mycoplasma columbinasale in Cases of Respiratory Disease in Domestic Pigeons (Columba livia var. domestica)

Figure 1

Histology and immunohistochemical detection of Mycoplasma spp. in domestic pigeons. (a) Trachea (H&E); marked epithelial hyperplasia and increased cellularity of the lamina propria and multifocal areas of erosion and ulceration. (b) Trachea (H&E); submucosal lymphoid aggregates. (c) Lung (H&E); mononuclear aggregates are characterized by small lymphocytes (short blue arrowhead), plasma cells (long black arrowhead), macrophages (long orange arrowhead), and occasional heterophils (short green arrowhead). (d) Trachea (IHC); Mycoplasma spp. seen as finely granular intracytoplasmic reaction on the respiratory epithelium.

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