International neuroblastoma pathology classification: Unfavourable histology group, patient 1.5 yr up to but less than 5 yr, with poorly differentiated neuroblastoma and any MKI or differentiating neuroblastoma and intermediate or high MKI

International neuroblastoma pathology classification: Unfavorable histology group, patient 1.5 yr up to but less than 5 yr, with poorly differentiated neuroblastoma and any MKI or differentiating neuroblastoma and intermediate or high MKI (finding)