Table 1 Clinicopathological and MRI characteristics of patients with sarcomatoid renal cell carcinoma
From: Sarcomatoid renal cell carcinoma: MRI features and their association with survival
Characteristics | Category | No. of patients (%)a |
|---|---|---|
Clinicopathological findings | ||
  Age (years) | 62 (51, 68)a | |
  Gender | Male | 41 (69.5) |
Female | 18 (30.5) | |
  Ethnicity | White | 47 (79.7) |
Black | 2 (3.4) | |
Asian | 6 (10.2) | |
Unknown | 4 (6.8) | |
  Baseline metastatic status | Loco-regional | 33 (55.9) |
Metastatic | 26 (44.1) | |
  Nephrectomy type | Radical | 49 (83.1) |
Partial | 10 (16.9) | |
  Lymph node dissection | Standard | 31 (52.5) |
Extended | 11 (18.6) | |
None | 17 (28.8) | |
  Systemic treatmentsb | None (only nephrectomy) | 14 (23.7) |
Neoadjuvant only | 2 (3.4) | |
Neoadjuvant and adjuvant | 6 (10.2) | |
Adjuvant | 37 (62.7) | |
  Pathological tumor size (cm) | 105 (7.7, 12.8)a | |
  Pathological tumor stage | pT1 | 4 (6.8) |
pT2 | 8 (13.6) | |
pT3 | 43 (72.9) | |
pT4 | 4 (6.8) | |
  Histological subtype | Clear cell | 44 (74.6) |
Papillary | 2 (3.4) | |
Chromophobe | 6 (10.2) | |
Othersc | 7 (11.8) | |
  Metastatic lymph nodes on pathology | Present | 13 (22.4) |
Absent | 46 (77.6) | |
MRI findings | ||
  Size on MRI (cm) | 10.5 (7.5, 12.7)a | |
  Non-enhancing areas | Present | 50 (84.7) |
Absent | 9 (15.3) | |
  Lymphadenopathy | Present | 17 (28.8) |
Absent | 42 (71.2) | |
  T2LIA volume (ml) | 3.0 (0.1, 13.0)a | |
  Percentage of T2LIA (%) | 0.8 (0.0, 2.9)a | |