Shar-Pei fever (SPAID) is diagnosed clinically by compatible signs in a Shar-Pei or crossbreed after ruling out other causes of fever, and the primary management goal is reducing the chronic autoinflammatory state that drives progression to renal amyloidosis. MSD Vet Manuals

Diagnosis of Shar-Pei fever is clinical. No pathognomonic laboratory test is described. The diagnosis rests on the presence of compatible clinical signs — episodic fever and swollen hocks — in a Shar-Pei or cross, with other causes of fever excluded. MSD Vet Manuals Serum amyloid A measurement may be used as a supportive tool when amyloidosis is suspected, though a definitive diagnosis of renal amyloidosis requires intravital renal biopsy with histopathological confirmation of amyloid deposits. Medycyna Wetery…

The episodic inflammatory episodes of Shar-Pei fever are postulated to create a subclinical, chronic autoinflammatory state that predisposes affected dogs to amyloid-associated (AA) amyloidosis. Journal of the… Amyloidosis in Chinese Shar-Pei occurs secondary to immune dysregulation and a subsequent autoinflammatory disorder, with genetic analysis identifying one primary risk locus and a suggested modifier locus. Journal of the… Hepatic amyloidosis can also occur in affected Shar-Pei, in addition to the more common renal involvement. MSD Vet Manuals

Renal amyloidosis in Shar-Pei has a distinct clinicopathologic profile compared to other breeds. Shar-Pei with renal amyloidosis are significantly younger at presentation than non-Shar-Pei dogs (median 4.8 years vs. median 9.0 years). Journal of Vete… Median serum creatinine at presentation across all dogs with renal amyloidosis is 5.5 mg/dL, and Shar-Pei present with creatinine concentrations approximately 3-fold higher than non-Shar-Pei dogs. Journal of Vete… Hypoalbuminemia is present in 64.7% of Shar-Pei with renal amyloidosis (vs. 100% of non-Shar-Pei). Journal of Vete… An elevated urine protein:creatinine ratio is present in 96% of all dogs with renal amyloidosis. Journal of Vete… Nephrotic syndrome occurs in 10% of non-Shar-Pei dogs but is not reported in Shar-Pei with this disease. Journal of Vete… Medullary amyloid deposition is present in 100% of Shar-Pei with renal amyloidosis, compared to 49.0% of non-Shar-Pei dogs. Journal of Vete… Extrarenal amyloid deposition is also more common in Shar-Pei. Journal of Vete…

Histopathologic confirmation requires Congo red staining, ideally on sections 8–10 μm thick, with examination under polarized light demonstrating apple-green birefringence. Journal of the… Thioflavin-T staining, transmission electron microscopy, and immunohistochemistry against an amyloid precursor protein can also confirm the diagnosis but are not required when Congo red staining has been successfully performed. Journal of the… Amyloid is easily overlooked on cytology and may be misinterpreted as stroma, basement membrane material, osteoid, colloid, or inspissated mucin. Journal of the…

The treatment goal is reduction of inflammation and proteinuria; the veterinary literature does not describe a specific disease-modifying protocol with defined dosing for Shar-Pei fever itself. Medycyna Wetery…+1 The main goal of treatment is to reduce inflammation and proteinuria. Medycyna Wetery… Treatment is described as challenging given the absence of a defined therapeutic management protocol, and is frequently ineffective. Veterinaria e Z…

Prognosis is poor once renal amyloidosis is established. Median survival time across all dogs with renal amyloidosis is 5 days (range 0–443 days), and serum creatinine concentration is significantly and negatively associated with survival. Journal of Vete… When nephrotic syndrome develops, the prognosis is guarded to poor and the majority of patients do not survive one year. Medycyna Wetery… Early surveillance and management of underlying predisposing conditions is warranted given this unexpectedly low survival time. Journal of Vete…

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