What diagnostic finding is needed to confirm PLE in dogs?

What diagnostic finding is needed to confirm PLE in dogs?

• A. Radiography
• B. Serum protein electrophoresis
• C. Histopathology
• D. Endoscopy

Answer: (C)

Protein-losing enteropathy in dogs is confirmed by demonstrating the intestinal tissue pathology that allows protein to leak into the gut. The most definitive finding is histopathology of intestinal biopsy showing the mucosal disease driving the loss—such as lymphangiectasia or inflammatory changes—linking the low plasma proteins to a GI source. Radiography or general serum protein tests can indicate abnormalities but do not prove that the loss originates from the GI tract, and endoscopy is the method used to obtain tissue for histology, which is the decisive evidence.

Protein-losing enteropathy in dogs is confirmed by demonstrating the intestinal tissue pathology that allows protein to leak into the gut. The most definitive finding is histopathology of intestinal biopsy showing the mucosal disease driving the loss—such as lymphangiectasia or inflammatory changes—linking the low plasma proteins to a GI source. Radiography or general serum protein tests can indicate abnormalities but do not prove that the loss originates from the GI tract, and endoscopy is the method used to obtain tissue for histology, which is the decisive evidence.