Fig. 2From: Infectious endocarditis caused by Bartonella henselae associated with infected pets: two case reportsLeft - Masson trichrome staining micrographs showing an inflammatory nodule (pointed by the arrow) in the valve vegetation of patient 1 with blood culture-negative infective endocarditis. Right – Enlarged and detailed left micrograph, showing the nodule with fibrosis, vascular neoformation, and chronic inflammatory infiltrateBack to article page