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Table 1 Patient demographics.

From: Positron emission tomography in the detection of occult primary head and neck carcinoma: a retrospective study

Patient no.

Sex

Age (yrs)

Tumor stage

Diagnosis (tumor type)

Localization of cervical lymph node metastases

PET result

Result of directed biopsy

Did PET result alter treatment strategy?

1

M

55

N3

PDC

II, III

negative

n/a

No

2

M

57

N1

SCC

III

negative

n/a

No

3

M

65

N1

SCC

II

negative

n/a

No

4

M

65

N2a

SCC

II

negative

n/a

No

5

F

72

N2a

UC

II

negative

n/a

No

6

M

72

N3

SCC

V

pulmonary metastases

n/a

Yes

7

M

50

N1

SCC

II

hypopharynx

SCC

Yes

8

M

55

N3

SCC

II, III, V

negative

n/a

No

9

M

40

N1

SCC

II

oropharynx; bone and hepatic metastases

SCC

Yes

10

M

69

N2b

UC

II,III

bone and hepatic metastases

n/a

Yes

11

M

44

N3

SCC

II, III

negative

n/a

No

12

M

48

N2b

SCC

II

negative

n/a

No

13

M

70

N2a

SCC

II, III

negative

n/a

No

14

F

57

N1

PDC

I

base of tongue

SCC

Yes

15

M

48

N2a

PDC

II

nasopharynx; bone and extracervical lymph node metastases

negative

Yes

16

M

48

N3

Adenocarcinoma

II, III

negative

n/a

No

17

M

54

N3

SCC

II, III

negative

n/a

No

18

M

47

N2c

SCC

III, IV

hypopharynx

negative

No

19

M

57

N2b

PDC

II, III, V

hepatic metastases

n/a

Yes

20

M

68

N2a

SCC

III

supraglottis

negative

No

21

M

36

N3

Adenocarcinoma

II, III, IV, V

extracervical lymph node metastases

n/a

Yes

22

M

68

N3

SCC

II, V

negative

n/a

No

23

M

44

N3

SCC

II, III, IV, V

palatine tonsil

negative

No

24

M

45

N2a

PDC

II

extracervical lymph node metastases

n/a

Yes

25

F

56

N2b

Adenocarcinoma

V

bone and pulmonary metastases

n/a

Yes

26

M

53

N3

PDC

II, III

bone metastases

n/a

Yes

27

M

68

N3

SCC

II, III

lung (primary)

SCC

Yes

28

M

47

N2a

SCC

II

negative

n/a

No

29

M

46

N3

SCC

II, V

negative

n/a

No

30

M

75

N2b

PDC

I, II, V

parotid gland

SCC

Yes

31

M

55

N3

SCC

II, III

negative

n/a

No

32

M

56

N2b

PDC

II

negative

n/a

No

33

M

61

N2a

SCC

IV

negative

n/a

No

34

F

51

N3

SCC

II

palatine tonsil

SCC

Yes

35

M

48

N1

PDC

I

bone metastases

n/a

Yes

36

M

61

N3

SCC

II, III

negative

n/a

No

37

M

58

N2b

SCC

II, III

nasopharynx

negative

No

38

F

81

N1

SCC

IV

negative

n/a

No

39

M

78

N1

SCC

V

sinonasal primary and extracervical lymph node metastases

SCC

Yes

40

M

69

N2a

PDC

II

hepatic metastases

n/a

Yes

41

M

60

N3

SCC

II, III, IV

bone and extracervical lymph node metastases

n/a

No

42

M

52

N3

PDC

II, V

pulmonary and hepatic metastases

n/a

Yes

43

M

73

N3

SCC

II, V

negative

n/a

No

44

M

56

N3

PDC

II, III

bone and extracervical lymph node metastases

n/a

No

45

M

69

N3

SCC

IV, V

esophageal primary, bone and extracervical lymph node metastases

SCC

Yes

46

M

45

N2a

Adenocarcinoma

V

extracervical lymph node metastases

n/a

Yes

47

M

60

N2b

SCC

I, II

pulmonary, bone and extracervical lymph node metastases

n/a

No

48

M

54

N2b

SCC

I, II

base of tongue

SCC

Yes

49

M

44

N2b

UC

II, III, IV, V

negative

n/a

No

  1. PDC: poorly differentiated carcinoma; SCC: squamous cell carcinoma; UC: undifferentiated carcinoma; n/a: not applicable.