Table 1 Benign and malignant lipomatous tumors as listed by the current WHO-definition and MDM2 -status
From: Challenging dedifferentiated liposarcoma identified by MDM2-amplification, a report of two cases
Entity | Dignity | ICD-O | MDM2 amplified |
|---|---|---|---|
Lipoma | Benign | 8850/0 | no |
Lipoblastoma | Benign | 8851/0 | no |
Angiolipoma | Benign | 8861/0 | no |
Myolipoma | Benign | 8890/0 | no |
Chondroid lipoma | Benign | 8862/0 | no |
Spindle cell lipoma | Benign | 8854/0 | no |
Pleomorphic lipoma | Benign | 8854/0 | no |
Hibernoma | Benign | 8880/0 | no |
Well differentiated liposarcoma/atypical lipomatous tumor | Intermediate, locally aggressive | 8851/1 | yes |
Dedifferentiated liposarcoma | Malignant | 8858/3 | yes |
Myxoid liposacroma | Malignant | 8852/3 | no |
Pleomorphic liposarcoma | Malignant | 8854/3 | no |