Case Report
A Case of Recurrent Mesocolon Myxoid Liposarcoma and Review of the Literature
Table 1
Liposarcoma classification and characteristics according to the World Health Organisation classification of tumours [
5].
| Type | Incidence | Recurrence | Prognostic factor | Mortality rate | Survival |
| Atypical lipomatous tumor “ALT”/well differentiated “WD” | 40–45% | Lesions located in a surgically amenable soft tissue do not recur following WLE with clear margin | Anatomic locations “deep soft tissue liposarcoma carries high risk” | 0% for ALT of extremities to 80% for WD in the retroperitoneum | 6–11 years when followed up for 10–20 years | Dedifferentiated | 10% | 40% local recurrence and 15–20% for distant metastasis | Anatomic locations (retroperitoneum carries the worst clinical behaviour) | 28–30% at 5-year followup (this figure is higher at 10–20-year followup) | — | Myxoid | 10% | Prone to recur locally and one-third develop metastasis | High histological grade (≥5% RC areas), presence of necrosis, and TP53 overexpression carries unfavourable prognosis | — | — | Pleomorphic | 5% | 30–50% metastasis rate | Tumour depth, size, >20 mitosis in 10 HPFs, and presence of necrosis carries a worse prognosis | 40–50% mortality | Patient dies within a short period of time | Mixed type | Extremely rare | — | — | — | — |
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