Capillary-sized vascular channels with anastomosing sinusoidal pattern
Eosinophilic cytoplasm with occasional hyaline globules
Round-ovoid nuclei with occasional "hobnailing" and mild atypia; inconspicuous mitotic activity
Occasional fibrin thrombi
IHC: CD31
Capillary-sized vascular channels
Eosinophilic cytoplasm with rare hyaline globules
Round-ovoid nuclei with occasional "hobnailing" and mild pleomorphism; inconspicuous mitotic activity
Occasional fibrin thrombi; extramedullary haematopoiesis
Capillary-sized vascular channels
Eosinophilic cytoplasm, with occasional hyaline globules
Round-ovoid nuclei with occasional "hobnailing" and mild pleomorphism; inconspicuous mitotic activity
Fibrin thrombi; extramedullary haematopoiesis