Percutaneous microwave ablation of renal cell carcinoma is safe in patients with renal dysfunction

Figures & data

Table 1. Pathologic characteristic of tumour lesions and ablation procedure.

No.	Age	GFR (ml/min)	CKD stages	Size (cm)	Pathological results	Session	Complete ablation	Follow-up (month)	Survival status
1	80	35.1	3	2.2	Clear cell carcinoma	1	Yes	3.5	Dead
2	67	36.9	3	1.9	Clear cell carcinoma	2	Yes	37.1	Dead
3	53	29.5	3	3.1	Papillary carcinoma	1	Yes	85.9	Alive
4	76	22.2	4	2.5	Clear cell carcinoma	1	Yes	74.6	Alive
5	80	40.5	3	2.6	Clear cell carcinoma	1	Yes	65.1	Alive
6	55	8.0	5	2.8	Clear cell carcinoma	1	Yes	33.6	Alive
7	46	8.4	5	3.7	Clear cell carcinoma	1	Yes	32.9	Alive
8	59	7.6	5	2.5	Nondiagnostic	1	Yes	27.9	Alive
9	73	41.9	3	5	Clear cell carcinoma	2	Yes	26.5	Alive
10	66	69.7	2	1.9	Clear cell carcinoma	1	Yes	24.9	Alive
11	40	61.8	2	2.7	Clear cell carcinoma	1	Yes	24.9	Alive
12	48	36.4	3	3.3	Clear cell carcinoma	1	Yes	24.0	Alive
13	80	43.7	3	4.0	Clear cell carcinoma	1	Yes	22.6	Alive
14	35	97.7	1	3.5/2.4	Clear cell carcinoma	1/1	Yes/Yes	19.1	Alive
15	49	73.8	2	4.1	Clear cell carcinoma	1	Yes	9.5	Alive
16	64	42.7	3	4.7	Clear cell carcinoma	1	Yes	11.6	Alive
17	67	43.8	3	3.2	Clear cell carcinoma	1	Yes	11.6	Alive
18	79	37.9	3	2.8	Clear cell carcinoma	1	Yes	14.4	Alive

Figure 1. The changes of renal function varied in patients of different CKD stages. (A) The serum creatinine concentration pre-MWA, one day after MWA and at the final follow-up; (B) The serum urea nitrogen concentration pre-MWA, one day after MWA and at the final follow-up.

Figure 2. A 3.3 × 3.0 cm tumour in the solitary kidney of a 48-year-old woman treated with MWA. (A) Preablation enhanced-CT image shows the lesion adjacent to the renal pelvis (white arrow); (B) CEUS displays a heterogeneous hyperenhancement neoplasm (white arrow); (C) CEUS shows no hyperenhancement in the ablation zone (grey arrow) three days after MWA; (D) After MWA, a MR Image shows no residual tumour in the ablation zone (grey arrow).

Figure 3. A 2.5 × 2.5 cm tumour lesion in the left kidney of a 76-year-old man treated with MWA. (A and B) A right kidney tumour is detected by conventional US at physical check-up (white arrow); (C and D) Five years after MWA MR image shows no recurrent tumour in the ablation zone (grey arrow).