Article Figures & Data
Figures
- FIGURE 1.
18F-FDG PET images of 51-y-old male patient who underwent PET examination 8 mo after CCRT (pretherapy stage IVA) show a biopsy-proven cervical lymph node metastasis at left submandibular region (arrows) and intense 18F-FDG uptake in right cervical muscle (arrowhead). No lymph node metastasis in the right neck was observed during clinical follow-up in this patient.
- FIGURE 2.
Image of 63-y-old male patient who underwent 18F-FDG PET examination 8 mo after completion of CCRT reveals multiple 18F-FDG hypermetabolic lesions in right neck, mediastinum, and bilateral lungs. Patient died 13 mo after PET study.
- FIGURE 3.
Survival for PET-positive and PET-negative patient groups (A) and stage I, II and stage III, IV patient groups (B).
Tables
Variable PET Negative 28/64 (44) Positive 36/64 (56) Age (y) 42.79 ± 12.75 49.19 ± 11.78 Sex Male 21 29 Female 7 7 Initial stage I and II 5 5 III and IV 23 31 Duration after therapy (mo) 14.68 ± 14.73 13.58 ± 13.11 Follow-up Censored 28 28 Endpoint 0 8 Survival (mo) after PET 36.99 ± 14.62 24.83 ± 16.21 Values in parentheses are percentage.
Outcome of follow-up PET Negative (n = 28) Positive (n = 36) No recurrence or metastasis 25 3 Local recurrence 0 11 Neck LN metastasis 1 1 Local recurrence + neck LN metastases 0 9 Distant metastases 2 8 Axillary and mediastinal LNs 0 1 Lung 1 3 Pericardium 1 0 Bones 0 4 Neck LN + lung metastases 0 2 Second malignancy (nonsmall cell lung carcinoma) 0 1 Local recurrence + neck LN + lung or bone metastases 0 1 LN = lymph node.
- TABLE 3
Diagnostic Value of 18F-FDG PET in Detection of Recurrence or Metastatic NPCs and Secondary Primary Cancers for 64 NPC Patients
Follow-up results PET results Positive Negative Total R/M positive 33 3 36 R/M negative 3 25 28 Total 36 28 64 R/M = recurrence or metastases.
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