EN
TR
Diagnostic performance of preoperative 18F-FDG PET/CT in detecting axillary lymph node metastasis in breast cancer
Öz
Objective: To evaluate the diagnostic performance of axillary lymph node SUVmax measured on preoperative 18F-FDG PET/CT in predicting pathological axillary metastasis and to investigate clinicopathological and imaging factors associated with axillary involvement in breast cancer.
Methods: This single-center retrospective study included 62 selected patients who underwent clinically indicated preoperative PET/CT between 2021 and 2025 and had postoperative axillary pathological evaluation. Histopathology was accepted as the reference standard. Demographic, clinical, and imaging variables were analyzed. The optimal SUVmax cut-off was determined using ROC analysis, and variables associated with axillary metastasis were explored using multivariable logistic regression.
Results: Pathological axillary metastasis was detected in 34 patients (54.8%). Advanced T stage was significantly associated with metastasis (p=0.009). Axillary lymph node short-axis diameter and SUVmax were significantly higher in the metastasis-positive group (p<0.001 and p=0.001, respectively). The AUC for SUVmax was 0.742, with a sensitivity of 55.9% and specificity of 78.6% at a cut-off value of 1.5. In multivariable analysis, only axillary lymph node short-axis diameter remained statistically significant (p=0.006), whereas SUVmax did not.
Conclusion: Preoperative axillary lymph node SUVmax on 18F-FDG PET/CT showed moderate discriminatory ability for pathological axillary metastasis, but did not remain an independent predictor in the dichotomized multivariable model after adjustment for clinicopathological and morphologic imaging features. Axillary lymph node short-axis diameter remained the only independent imaging correlate. Therefore, PET/CT should be regarded as a complementary rather than definitive tool for axillary staging in selected breast cancer patients.
Anahtar Kelimeler
Destekleyen Kurum
Yoktur
Etik Beyan
Bu çalışma, Çanakkale Onsekiz Mart Üniversitesi Girişimsel Olmayan Klinik Araştırmalar Etik Kurulu tarafından onaylanmıştır (Karar No: 2026-84; Tarih: 8 Nisan 2026). Çalışma Helsinki Deklarasyonu’na uygun olarak yürütülmüştür. Çalışmanın retrospektif niteliği nedeniyle hasta onamı etik kurul tarafından muaf tutulmuştur.
Teşekkür
Yoktur
Kaynakça
- 1. Sung H, Ferlay J, Siegel RL, et al. Global cancer statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin. 2021;71:209-49.
- 2. Giuliano AE, Ballman KV, McCall L, et al. Effect of axillary dissection vs no axillary dissection on 10-year overall survival among women with invasive breast cancer and sentinel node metastasis: the ACOSOG Z0011 (Alliance) randomized clinical trial. JAMA. 2017;318(10):918-26.
- 3. Lyman GH, Somerfield MR, Bosserman LD, et al. Sentinel lymph node biopsy for patients with early-stage breast cancer: American Society of Clinical Oncology clinical practice guideline update. J Clin Oncol. 2017;35(5):561-4.
- 4. Groheux D, Cochet A, Humbert O, et al. 18F-FDG PET/CT for staging and restaging of breast cancer. J Nucl Med. 2016;57(Suppl 1):17S-26S.
- 5. Ulaner GA. PET/CT for patients with breast cancer: where is the clinical impact? AJR Am J Roentgenol. 2019;213:254-65.
- 6. Zhang J, Shi X, Xiao Y, et al. Early SUVmax is the best predictor of axillary lymph node metastasis in stage III breast cancers. Quant Imaging Med Surg. 2021;11:1680-91.
- 7. Zhang X, Liu Y, Luo H, et al. PET/CT and MRI for identifying axillary lymph node metastases in breast cancer patients: systematic review and meta-analysis. J Magn Reson Imaging. 2020;52:1840-51.
- 8. Kitajima K, Fukushima K, Miyoshi Y, et al. Diagnostic and prognostic value of (18)F-FDG PET/CT for axillary lymph node staging in patients with breast cancer. Jpn J Radiol. 2016;34:220-8.
Ayrıntılar
Birincil Dil
İngilizce
Konular
Genel Cerrahi, Klinik Onkoloji, Nükleer Tıp
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
31 Mayıs 2026
Gönderilme Tarihi
21 Nisan 2026
Kabul Tarihi
26 Mayıs 2026
Yayımlandığı Sayı
Yıl 2026 Cilt: 7 Sayı: 2
APA
Yıldırım, Ö., Demir, H. D., & Karacaer, M. A. (2026). Diagnostic performance of preoperative 18F-FDG PET/CT in detecting axillary lymph node metastasis in breast cancer. Troia Medical Journal, 7(2), 89-98. https://doi.org/10.55665/troiamedj.1935221
AMA
1.Yıldırım Ö, Demir HD, Karacaer MA. Diagnostic performance of preoperative 18F-FDG PET/CT in detecting axillary lymph node metastasis in breast cancer. Troia Med J. 2026;7(2):89-98. doi:10.55665/troiamedj.1935221
Chicago
Yıldırım, Özgür, Hasan Deniz Demir, ve Mehmet Ali Karacaer. 2026. “Diagnostic performance of preoperative 18F-FDG PET/CT in detecting axillary lymph node metastasis in breast cancer”. Troia Medical Journal 7 (2): 89-98. https://doi.org/10.55665/troiamedj.1935221.
EndNote
Yıldırım Ö, Demir HD, Karacaer MA (01 Mayıs 2026) Diagnostic performance of preoperative 18F-FDG PET/CT in detecting axillary lymph node metastasis in breast cancer. Troia Medical Journal 7 2 89–98.
IEEE
[1]Ö. Yıldırım, H. D. Demir, ve M. A. Karacaer, “Diagnostic performance of preoperative 18F-FDG PET/CT in detecting axillary lymph node metastasis in breast cancer”, Troia Med J, c. 7, sy 2, ss. 89–98, May. 2026, doi: 10.55665/troiamedj.1935221.
ISNAD
Yıldırım, Özgür - Demir, Hasan Deniz - Karacaer, Mehmet Ali. “Diagnostic performance of preoperative 18F-FDG PET/CT in detecting axillary lymph node metastasis in breast cancer”. Troia Medical Journal 7/2 (01 Mayıs 2026): 89-98. https://doi.org/10.55665/troiamedj.1935221.
JAMA
1.Yıldırım Ö, Demir HD, Karacaer MA. Diagnostic performance of preoperative 18F-FDG PET/CT in detecting axillary lymph node metastasis in breast cancer. Troia Med J. 2026;7:89–98.
MLA
Yıldırım, Özgür, vd. “Diagnostic performance of preoperative 18F-FDG PET/CT in detecting axillary lymph node metastasis in breast cancer”. Troia Medical Journal, c. 7, sy 2, Mayıs 2026, ss. 89-98, doi:10.55665/troiamedj.1935221.
Vancouver
1.Özgür Yıldırım, Hasan Deniz Demir, Mehmet Ali Karacaer. Diagnostic performance of preoperative 18F-FDG PET/CT in detecting axillary lymph node metastasis in breast cancer. Troia Med J. 01 Mayıs 2026;7(2):89-98. doi:10.55665/troiamedj.1935221
