Recurrent abdominal liposarcoma: Analysis of 19 cases and prognostic factors

Table 1 Patient demographics and clinical data n (%)

Variables	Mean/median
Age (yr)
mean ± SD	55 ± 10.8
Median (range)	58 (34-84)
Gender
Male	12 (63.2)
Female	7 (36.8)
No. of operations
Two	11 (57.9)
Three	4 (21.1)
Four	3 (15.9)
Five	1 (5.3)
Follow-up time (mo)
mean ± SD	48.9 ± 34.8
Range	4-120
Primary tumor location
Retroperitoneum	13 (68.4)
Mesentery	3 (15.8)
Omentum	1 (5.3)
Small intestine	1 (5.3)

Table 2 Surgical methods and resection extent of primary and recurrent liposarcomas n (%)

Variables	DLR	CMR	Total
Primary tumor
GTR	11 (57.89)	4 (21.05)	15 (78.94)
Palliative resection	3 (15.79)	0 (0.00)	3 (15.79)
Partial resection	1 (5.26)	0 (0.00)	1 (5.26)
Total	15 (78.95)	4 (21.05)	19 (100.00)
Recurrent tumor
GTR	5 (15.63)	15 (46.88)	20 (62.50)
Palliative resection	2 (6.25)	6 (18.75)	8 (25.00)
Partial resection	3 (9.38)	1 (3.13)	4 (12.50)
Total	10 (31.25)	22 (68.75)	32 (100.00)

DLR: Discrete lesion resection; CMR: Contiguous multivisceral resection; GTR: Gross total resection.

Table 3 Comparison of clinical data according to recurrent tumor size

Tumor size	< 20 cm	> 20 cm	Total
GTR	4	10	14
Palliative resection	3	5	8
Partial resection	2	0	2
DLR	4	2	6
CMR	6	12	18
Bleeding (< 500 mL)	4	6	10
Profuse bleeding (≥ 500 mL)1	1	13	14

¹P = 0.009 between different recurrent tumor size group. DLR: Discrete lesion resection; CMR: Contiguous multivisceral resection; GTR: Gross total resection.