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  • Title: Impact of lymphadenectomy on the oncologic outcome of patients with adrenocortical carcinoma.
    Author: Reibetanz J, Jurowich C, Erdogan I, Nies C, Rayes N, Dralle H, Behrend M, Allolio B, Fassnacht M, German ACC study group.
    Journal: Ann Surg; 2012 Feb; 255(2):363-9. PubMed ID: 22143204.
    Abstract:
    OBJECTIVE: Adrenocortical carcinoma (ACC) is a rare malignancy with an unfavorable prognosis. The impact of a locoregional lymph node dissection (LND) has never been defined in this disease. We report the disease-specific outcome of patients treated with or without LND during primary adrenalectomy. METHODS: The medical records of patients followed by the German ACC Registry were retrospectively reviewed. Patients with incomplete resection or distant metastases were excluded. Only if the histologic analysis retrieved 5 or more lymph nodes, an intended LND was assumed (LND group). The predefined primary end point of the study was disease-specific survival. RESULTS: Of 283 included patients, 47 patients (16.6%) were treated with LND, whereas 236 patients (83.4%) underwent surgery without LND. Patients who underwent LND had a larger median tumor size (12.0 cm, range: 2.3-30 cm vs 10.0 cm, range: 4.0-39 cm, P = 0.007) and were more often treated by multivisceral resection (LND: 47.8% vs no-LND: 18.1%; P < 0.001). The other baseline characteristics (age, sex, endocrine activity, Weiss score, Ki-67 index, and adjuvant treatment) did not differ significantly. Median follow-up of all patients still alive was 40 months (range: 6-326). Multivariate analysis adjusted for age, tumor stage, multivisceral resection, adjuvant treatment, and lymph nodes status on preoperative imaging demonstrated a significantly reduced risk for tumor recurrence (hazard ratio: 0.65; 95% confidence interval: 0.43-0.98; P = 0.042) and for disease-related death (hazard ratio: 0.54; 95% confidence interval: 0.29-0.99; P = 0.049) in LND patients when compared with no-LND patients. CONCLUSIONS: Our retrospective data indicate that locoregional LND improves tumor staging and leads to a favorable oncologic outcome in patients with localized ACC.
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