a cancer cell being attacked by leucocytes

accurate antigen antigenic attach attack attacked being bind biological biology blood cancer cancerous cell cytological cytology cytotoxic disease falsecolour falsecoloured haematology healthcare hematological illustration immune immunity immunological immunology leucocyte leucocytes leukocyte lymphocyte lymphocytes malignancy malignant medical medically medicine neoplasm oncological oncology recognise rendered response system tumor tumour white