Table 1 Reported cases of colorectal leiomyosarcoma with lymph node metastasis
Case | Author/year | Age (years)/sex | Location | Diameter (mm) | Macroscopic form | Surgery | Invasion depth | Number of lymph node metastases | Mitotic activity | Ki-67 index (%) | Outcome (months) |
|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Anzai [10]/2017 | 76/F | R | 110 | Torose lesion with ulcer | Rectal anterior resection | T4b (ovary) | 1 | 10/HPF | 80 | Alive (60) |
2 | Our case | 72/F | T | 55 | Type 1 | Transverse colon resection | T3 | 1 | 30–40/10 HPF | 70–80 | Alive (18) |