Fig. 1B.
FVIII-staining of a severely inflammed gall bladder. The pronounced
staining is due to proliferating capillaries as well as agglutinated
thrombocytes and seepage of the antigen.
Fig 1C. Epitheloid
haemangioendothelioma stained for FVIII.
Fig. 1D. Epitheloid haemangioendotheliosarcoma stained
for FVIII. The tumour cells only reveal a faint dot-like staining.