Table 1 Patients’ demographics and tumor characteristics of cystic renal cell carcinoma cytology (total number = 70)
From: Implication of cystic fluid cytology of renal cell carcinoma on surgical practice
Variables | Positive cytology (n = 34) | Negative cytology (n = 36) | p value |
|---|---|---|---|
Age (years) | 56.3 ± 2.11 | 49.6 ± 2.36 | 0.037* |
BMI (kg/m2) | 25.1 ± 5.3 | 26.4 ± 2.3 | 0.426 |
Gender | 0.59 | ||
Male | 22 (64.7%) | 21 (58.3%) | |
Female | 12 (35.3%) | 15 (41.7%) | |
Tumor size (cm) | 3.5 ± 0.41 | 3.81 ± 0.4 | 0.588 |
Median tumor size (cm) | 3.0 | 3.3 | |
Laterality | |||
Right | 16 (47%) | 23 (63.8%) | |
Left | 18 (53%) | 13 (36.2%) | |
Operation type | |||
RAPN | 26 (76.5%) | 30 (83.3%) | |
LPN | 6 (17.7%) | 5 (13.8%) | |
LRN | 2 (5.8%) | 1 (2.9%) | |
Bosniak classification | 0.002* | ||
III | 9 (26.5%) | 20 (55.6%) | |
IV | 25 (73.5%) | 16 (44.4%) | |
Clinical stage | 0.56 | ||
cT1a | 20 (58.8%) | 24 (66.6%) | |
cT1b | 11 (32.4%) | 10 (27.7%) | |
cT2a | 3 (8.8%) | 2 (5.7%) | |
Histology subtype | 0.084 | ||
Clear cell | 24 (70.8%) | 26 (72.2%) | |
Papillary | 4 (11.7%) | 6 (16.6%) | |
Collecting duct | 3 (8.8%) | 1 (2.9%) | |
Chromophobe | 2 (5.8%) | 3 (8.3%) | |
MiT family Xp11.2 translocation | 1 (2.9%) | 0 | |
Histology grades | 0.14 | ||
Grade 1 | 11 (32.4%) | 10 (27.7%) | |
Grade 2 | 14 (41.1%) | 18 (50%) | |
Grade 3 | 9 (26.5%) | 8 (22.3%) |