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Table 4 Additional cases with scintigraphic evidence suggestive of an autonomous thyroid nodule without documented hyperthyroidism (or already on levothyroxine replacement therapy) discovered to harbor thyroid carcinoma on pathologic review

From: A solitary hyperfunctioning thyroid nodule harboring thyroid carcinoma: review of the literature

#

Age

Sex

Tumor growth (cm)

High risk history a

Suspicious U/S b

Nodule size c(cm)

Tumor size d(cm)

TFTs e

Toxic sx?

Compression sx?

Scan type

FNA

Surgical path

Reference (1st author)

1

51

F

2.7→5.3 in 2yrs

-

-

5.3

5

on LT4

-

+

Tc,131I

Follicular neoplasm

Poor diff cancer

Low [61]

2

44

F

 

-

 

3.5

3.7

nl

-

- →+

Tc

Benign

FTC

Schneider [62]

3

47

M

   

1.4

1

nl

-

 

123I

 

PTC

Bourasseau [41]

4

34

F

   

1

1

nl

-

 

123I

“Cancer”

PTC

Bourasseau [41]

5

37

F

   

1.5

1.5

nl

-

 

123I

Nondiagnostic

FTC

Bourasseau [41]

6

39

M

   

3

 

nl

  

123I

 

FVPTC

Mizukami [46]

7

69

F

 

Prior PTC

 

4

3.3

on LT4

+

-

131I

 

Hurthle

Caplan [63]

8

39

M

  

HE,PD,Cal

 

1.5

nl

-

-

123I

 

PTC

Michigishi [64]

9

65

F

   

4.3

 

nl

  

Tc

 

PTC

Ikekubo [48]

10

37

F

   

2.5

 

nl

  

Tc

 

PTC

Ikekubo [48]

11

39

F

   

3.5

 

nl

  

Tc

 

PTC

Ikekubo [48]

12

38

F

   

4.5

 

nl

  

Tc

 

PTC

Ikekubo [48]

13

35

F

 

-

 

1

0.4

nl

-

-

123I

 

PTC

Rubenfeld [65]

14

51

M

 

XRT

 

“large”

 

on LT4

-

 

123I

 

FTC

Nagai [50]

15

19

F

4x2→4x3 in 1 yr

  

4

4

nl

-

-

131I

 

PTC/FTC

Abdel-Razzak [66]

16

15

F

 

-

   

nl

-

-

Tc

 

PTC

Scott [67]

17

27

F

  

-

4

2.3

nl

+

-

131I

 

PTC

Fujimoto [68]

18

21

F

   

3

1

NA

+

+

131I

 

PTC

Becker [69]

19

23

F

   

1.5

1

NA

-

-

131I

 

PTC

Becker [69]

20

28

M

   

4.5

0.5

NA

+

-

131I

 

PTC

Molnar [70]

21

54

M

   

8.5

 

NA

  

131I

 

FTC

Als [58]

22

62

F

     

NA

  

131I

 

PTC

Als [58]

23

61

M

     

NA

  

131I

 

FTC

Als [58]

24

50

M

   

10

 

NA

  

131I

 

FTC

Als [58]

25

65

F

   

5

 

NA

  

131I

 

FTC

Als [58]

26

55

F

   

5.5

 

NA

  

131I

 

FTC

Als [58]

27

66

F

  

Cal

  

nl

-

+

Tc,131I

Colloid goiter

PTC

Bitterman [33]

77

35

M

 

-

 

5.4

0.5

Highf

    

Hurthle

Zanella [17]

  1. Abbreviations: + = yes; - = no; Cal = microcalcifications; FNA = fine needle aspiration; FTC = follicular thyroid carcinoma; FVPTC = follicular variant of papillary thyroid carcinoma; HE = hypoechoic; 123I = Iodine-123; 131I = Iodine-131; IV = internal vascularity; LT4 = levothyroxine; NA = not available; nl = normal; PD = poorly demarcated; PTC = papillary thyroid carcinoma; sx = symptoms; SHT = subclinical hyperthyroidism; fT3 = free triiodothyronine; fT4 = free thyroxine; TT3 = total triiodothyronine; TT4 = total thyroxine; 99mTc = technetium-99m-pertechnetate; TFTs = thyroid function testing; U/S = ultrasound; XRT = external beam radiotherapy.
  2. a High-risk history: ionizing radiation exposure as child/adolescent, prior personal history of thyroid cancer, and family history of thyroid cancer in one or more 1st-degree relatives; as per Cooper et al. [6].
  3. b Suspicious ultrasound: hypoechoic, microcalcifications, increased nodular vascularity, poorly demarcated; as per Cooper et al. [6].
  4. c Nodule size: The largest diameter of the thyroid nodule measured by ultrasonography, or if ultrasound not available, then by palpation.
  5. d Tumor size: The largest diameter of the thyroid nodule measured grossly after surgical resection.
  6. e TFTs: Indicates which thyroid hormone values (total T3, total T4, free T3, and/or free T4) were elevated at time of presentation, as opposed to SHT or euthyroidism. Of note, for many of these cases, no mention of one or more of these four standard thyroid hormone values was included.
  7. f High: Indicates that the patient was biochemically hyperthyroid, though specific thyroid hormone levels were not given.