cancer of spleen; cancer of the spleen; malignant neoplasm of spleen; malignant neoplasm of the spleen; malignant spleen neoplasm; malignant splenic neoplasm; malignant splenic tumor; malignant splenic tumour; malignant tumor of spleen; malignant tumor of the spleen; malignant tumour of spleen; malignant tumour of the spleen; splenic cancer