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Fig. 8 | BMC Veterinary Research

Fig. 8

From: Causes of mortality and morbidity in free-ranging mustelids in Switzerland: necropsy data from over 50 years of general health surveillance

Fig. 8

Lesions associated with amyloidosis in martens. a Pine marten, abdominal organs in situ: Severely enlarged spleen. b Same pine marten as in a, extracted spleen: Severe splenomegaly, increased consistency and rubber-like texture. c) Stone marten, Congo red stain, spleen: Severe deposition of amyloid (asterisk) around the blood vessels. d Same stone marten as c, Congo red stain, spleen: Apple-green birefringence under polarized light. e Pine marten, kidney: Diffuse tan discoloration with petechial hemorrhages. f Stone marten, histological section of a kidney (H&E stain): The glomeruli are partially obstructed by abundant deposit of eosinophilic, fibrillary material consistent with amyloid (asterisk) and a bacterial embolus within the lumen of the glomerular capillary (arrow head)

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