Case Report
Acute Myocarditis in a Patient with Newly Diagnosed Granulomatosis with Polyangiitis
Figure 3
Endomyocardial biopsy showing a large collagenous scar, including several degenerated myocytes. There is a marked vascular proliferation and scanty nongranulomatous chronic inflammation. There is no evidence of vasculitis (Masson Trichrome).