PMC9812439_01
Fluid collected from the pleural cavity, with a pinkish color, viscous, foul odor and flocculated appearance.
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Thoracentesis was performed based on clinical signs of pleural effusion, and 120 ml of foul-smelling fluid was drained from the right side and 230 ml from the left side, with rosy color and flocculated appearance (Figure 1).
Dermal lesions located between the shoulder blades. Diagnosis of eosinophilic plaques was confirmed after cutaneous cytology.
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In addition, circular lesions with an alopecic area with papules and crusts were observed in the interscapular region (Figure 2).
Ventrodorsal (VD) radiographic projection, showing an alveolar pattern (asterisk / *) and left lateral displacement of the cardiac silhouette (arrow). Courtesy of the Diagnostic Imaging Service, Small Animal Veterinary Hospital, UFRRJ.
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No images were suggestive of remnant pleural effusion (Figure 3).
Cellular predominance of mildly degenerated neutrophils and high presence of phagocytosed filamentous bacteria at the bottom of the slide (red arrows). Fast panoptic staining was used for optical microscopy with 1000x magnification.
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Microscopic analysis showed filamentous bacteria phagocytosed by neutrophils and macrophages, compatible with Nocardia species (Figure 4).