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Table 3 Lymphatic drainage according to SPECT-CT and neck dissection

From: Evaluating contralateral neck failure in patients with lateralized OPSCC treated with transoral robotic surgery and neck management based on pre-operative SPECT-CT lymphatic mapping

Parameters

n (%)

Labelled LN distribution

 

 Ipsilateral-only

10 (76.9)

 Contralateral-only

0 (0.0)

 Bilateral

1 (7.7)

 Retropharyngeal

 

  Ipsilateral

1 (7.7)

  Contralateral

0 (0.0)

 Not visualized

2 (15.4)

Number of labelled LN

 

 1

3 (23.1)

 2

6 (46.2)

 3

2 (23.1)

 > 3

0 (0.0)

Number of removed LNs

 

 Range

11–44

 Median

27.0

Pathologically involved LN

 

 Yes

7 (53.8)

 No

6 (46.2)

Number of pathologically involved LN lymph nodes

 

 0

6 (46.2)

 1

4 (30.8)

 2

3 (23.0)

 > 2

0 (0.0)

pENE

 

 Yes

1 (7.7)

 No

12 (92.3)

  1. LN, lymph node