Fig. 4. First pathological examination result indicating fibrin clots containing masses of round cells showing a morphology similar to that of atypical lymphocytes in hematoxylin–eosin staining, which suggests a tumor embolization due to malignant lymphoma (A, B). The additional investigation revealed that almost all the cells considered initially as atypical lymphocytes were in fact yeast-like fungi consisting of chain-like mycelial cells in Grocott staining (C).