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Table 1 Summary of previously reported cases of patients with retroperitoneal extragonadal germ cell tumor who later developed metachronous testicular tumor

From: Late testicular relapse two decades after primary extragonadal germ cell tumor with uncommon metastases: a case report

Case

Author

Age

EGCT histological type

MTT developmental period (month)

MTT histological type

MTT metastasis at diagnosis

Additional treatment

Recurrence

1

Quintela [9]

44

sem

84

non-sem

2

Lokich [10]

22

non-sem

168

sem

Unknown

3

Hayashi [11]

18

non-sem

84

sem

4

Gerl [12]

Unknown

non-sem

35

sem

5

Gerl [12]

Unknown

non-sem

42

sem

6

Gerl [12]

Unknown

non-sem

77

sem

+

Chemotherapy

7

Allaway [13]

22

non-sem

84

sem

+

Chemotherapy

8

Daniel [14]

24

sem

60

non-sem

After 3 months

9

Daniel [14]

23

non-sem

23

non-sem

Unknown

Radiation therapy

10

Hartmann [1]

28

non-sem

74

sem

+

Chemotherapy

11

Hartmann [1]

33

non-sem

30

non-sem

+

Chemotherapy

12

Hartmann [1]

40

non-sem

100

sem

+

Chemotherapy

13

Hartmann [1]

49

non-sem

88

sem

14

Hartmann [1]

29

non-sem

30

non-sem

15

Hartmann [1]

22

non-sem

48

sem

16

Hartmann [1]

23

non-sem

14

sem

17

Hartmann [1]

34

non-sem

35

sem

18

Hartmann [1]

Unknown

non-sem

102

sem

19

Hartmann [1]

30

non-sem

42

sem

+

Chemotherapy

20

Hartmann [1]

34

non-sem

78

sem

21

Hartmann [1]

22

non-sem

39

non-sem

22

Mindrup [15]

42

non-sem

50

non-sem

Unknown

23

kuroda [16]

32

non-sem

48

sem

24

Yamada [17]

30

non-sem

96

sem

25

Kawamura [18]

33

Unknown

91

non-sem

26

Hashimoto [6]

27

non-sem

120

sem

Unknown

Unknown

27

Hashimoto [6]

30

sem

96

sem

Unknown

Unknown

28

Hashimoto [6]

38

non-sem

64

non-sem

Unknown

Unknown

29

Hashimoto [6]

32

non-sem

15

sem

Unknown

Unknown

30

Hashimoto [6]

47

non-sem

21

non-sem

Unknown

Unknown

31

Present case

49

non-sem

248

sem

+

Chemotherapy

  1. EGCT extragonadal germ cell tumor, MTT metachronous testicular tumor, sem seminoma