Table 5 Retrospective computed tomography imaging features of persistent disease patients who did not undergo neck dissection.

From: Reoperations for structurally persistent or recurrent disease after thyroidectomy: analysis via preoperative CT

Variable

Total (n = 66)

Protocol A (n = 52)

Protocol B (n = 14)

False-negative findings on CT

28 (42.4)

25 (48.1)

3 (21.4)

CT-positivity missed

38 (57.6)

27 (51.9)

11 (78.6)

Calcification

2 (5.3)

2 (7.4)

0 (0.0)

Cystic/necrotic change

8 (21.1)

6 (22.2)

2 (18.2)

Focally strong or heterogeneous enhancement

28 (73.7)

19 (70.4)

9 (81.8)

  1. The numbers in parentheses are percentages. Protocol A refers to a 60-s scan delay after intravenous injection (IV) of 100 mL iodinated contrast agent; and Protocol B refers to a 30- or 40-s scan delay after IV injection of 90 mL iodinated contrast agent.
  2. CT computed tomography.
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