Fig. 3From: Rapidly progressive respiratory failure with multiple halo signs on computed tomography in a patient with primary cardiac angiosarcoma derived from the right atrium: a case reportTranscatheter endomyocardial biopsy findings. a On hematoxylin–eosin staining, the transcatheter endomyocardial biopsied specimen demonstrates abundant atypical cells invading the myocardial tissue (40×). b Immunohistochemical analysis reveals atypical cells partly forming capillary-like spaces (600×). c Staining with CD-31 (400×). d Staining with ERG (400×)Back to article page