Table 1 Staging and treatment outcomes of five collecting duct carcinoma patients
1 | 2 | 3 | 4 | 5 | |
|---|---|---|---|---|---|
Venous tumor thrombus | No | Yes | No | No | No |
Lymphatic metastasis | No | No | 1/8 | 5/6 | 3/4 |
Metastasis | No | No | No | Fat tissue in renal hilus | Fat tissue in renal hilus |
TNM staging | T2N0M0 | T3bNOMO | T2N1M0 | T4N2M0 | T4N2MO |
AJCC staging | II | III | III | IV | IV |
Operation | Radical nephrectomy | Radical nephrectomy | Radical nephrectomy | Palliative nephrectomy | Radical nephrectomy |
Immunotherapy (IFN -α) | No | 2 cycles | No | No | 1 cycle |
Survival time (month) | 18 | 12 | 9 | 6 | 5 |