Surgical Pathology Criteria

Angiosarcoma of the Breast

Grading / Staging / Report

Grading

  Low Grade Intermediate Grade High Grade
Anastomosing channels Prominent Prominent Frequently inconspicuous
Papillary growth Rare to absent Prominent Variable
Endothelial tufting Rare to absent Prominent Variable
Cytologic atypia Mild Mild to prominent Prominent
Mitotic figures Rare Frequent Frequent
Solid areas Absent Focal or absent Prominent
Necrosis Absent Absent Present
Blood lakes Absent Absent Often present
Awareness of the varying patterns exhibited by the above grades is useful for diagnostic purposes but it is not clear that it has any predictive value

 

Staging

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