Fig. 2
From: Unsuccessful percutaneous mechanical thrombectomy in fibrin-rich high-risk pulmonary thromboembolism
Gross morphology of a formaldehyde-fixated representative sample of the heterogeneous thromboembolus (a). Histological analysis in a cross-section of the same representative sample using non-specific haematoxylin-eosin staining (b) and Picro-Mallory ((c), RBC-rich regions appear yellow and fibrin clear red). Immunospecific staining for glycophorin A ((d), RBCs appear brown), anti β-3 integrin ((e), platelets appear brown), anti-fibrin ((f), fibrin meshwork appears brown) and anti-collagen ((g), no true positive reaction). Original magnification: 2×