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Table 2 Reported cases of collision renal tumours combining two malignant components

From: Renal collision tumours: three additional case reports

Cases [references]

Sex

Age (years)

Symptoms

Tumour 1

Tumour 2

Follow-up period

1- Anani et al. [9]

Male

81

Not available

CRCC

PRCC

Not available

2- Zhang et al. [11]

Female

63

Hematuria

PRCC

CRCC

NED at 20 months

3- Burch-Smith et al. [12]

Female

67

Abdominal pain

CCRCC

CDC

Metastases 5 months post-nephrectomy

4- Elian & Lam [13]

Male

66

Hematuria

PRCC

RMC

Not available

5- Kawano et al. [14]

Female

64

Abdominal pain, fever

CRCC

CDC

Metastases 8 months post-nephrectomy

6- Bartos et al. [15]

Male

70

Not available

CCRCC

PRCC

NED at 36 months

7- Matei et al. [16]

Male

70

Abdominal pain, hematuria

CDC

PRCC

NED at 57 months

8- Cho et al. [17]

Male

24

Accidental finding

CCRCC

CDC

Not available

9- Gong et al. [18]

Male

72

Weight loss, asthenia, anemia

CRCC

CDC

Not available

10- Roehrl et al. [19]

Female

65

Accidental finding

CRCC

PRCC

NED at 4 months

11- Moe et al. [20]

Male

51

Accidental finding

PRCC

CCRCC

Not available

12- Salazar-Mejia et al. [21]

Male

47

Dry cough, weight loss

CCRCC

CDC

NED at 12 months

13- Lamprou et al. [22]

Male

68

Accidental Finding

CCRCC

PRCC

Not available

14- Compérat [23]

Female

67

Accidental finding

CCRCC

PRCC

Not available

Present Case report 1

Male

64

Accidental finding

CCRCC

PRCC

NED at 20 months

Present Case report 3

Female

59

Accidental finding

CCRCC

CDC

NED at 12 months

  1. CRCC chromophobe renal cell carcinoma; PRCC papillary renal cell carcinoma; CDC collecting duct carcinoma; CCRCC clear cell renal cell carcinoma; RMC renal medullary carcinoma; NED no evidence of disease