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Table 1 Clinicopathologic data of 11 patients with papillary renal neoplasm with reverse polarity

From: Papillary renal neoplasm with reverse polarity may be a novel renal cell tumor entity with low malignant potential

No

Gender

Age

No. of tumor

Diameter

Laterality

Necrosis

Hemorrhage

Infiltration

Microvascular invasion

Foamy macrophages

Intracellular hemosiderin

Clustered lymphocytes

Multinucleated tumor cells

WHO/ISUP nuclear grade

Stage

Follow-up Period (mo)

Status

1

F

67

2

3, 1.5

Left

no

focal

Breakthrough of renal capsule accompanied by nerve invasion

no

no

yes (few)

yes

yes

1

T1aN0M0

78

ADF

2

M

50

1

4

Left

patchy

multifocal

no

no

no

no

yes

yes

1

T1aN0M0

74

ADF

3

M

67

1

1.8

Right

no

obvious

focal

no

no

Yes (in the overlying epithelium of cyst)

no

yes

2

T1aN0M0

lost

4

F

62

1

1.7

Left

multifocal

focal

multifocal

no

no

yes (few)

yes

yes

1

T1aN0M0

103

ADF

5

M

63

1

3

Left

no

no

focal

no

no

yes (few)

no

yes

1

T1aN0M0

21

ADF

6

F

47

1

5

Right

extensive

extensive

no

no

no

no

no

no

1

T1bN0M0

63

ADF

7

M

26

1

6

Left

multifocal

focal

no

no

no

no

no

yes

1

T1bN0M0

19

ADF

8

M

63

1

0.8

Right

focal

no

focal

no

no

no

yes

yes

1

T1aN0M0

17

ADF

9

M

70

1

1.5

Left

no

yes

no

no

no

no

no

yes

1

T1aN0M0

6

ADF

10

F

64

1

1.2

Left

no

no

no

no

yes (few)

yes (few)

no

yes

1

T1aN0M0

17

ADF

11

M

60

1

2.3a

Bilateral

no

focal

focal

no

no

yes (few)

yes

yes

1

T1aN0M0

16

ADF

  1. Abbreviations: F female, M male, ADF alive, disease-free
  2. aOnly left renal tumor was resected