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Table 3 CT, MRI, and PET-CT findings and their concordance with pathologic findings for RPLN metastasis

From: The value of CT, MRI, and PET-CT in detecting retropharyngeal lymph node metastasis of head and neck squamous cell carcinoma

Imaging modalities

Total No.

Pathologic findings

Positive RPLN

Negative RPLN

CT findings

Positive RPLN

33

28

5

Negative RPLN

90

15

75

MRI findings

Positive RPLN

37

32

5

Negative RPLN

86

11

75

PET-CT findings

Positive RPLN

27

24

3

Negative RPLN

47

5

42

  1. Abbreviations: CT Computed tomography, MRI Magnetic resonance imaging, PET-CT Positron emission tomography-computed tomography, RPLN Retropharyngeal lymph node