The outcomes of adrenalectomy for solitary adrenal metastasis: A 17-year single-center experience
2018
AIM: We aimed to analyze surgical outcomes of open or laparoscopic adrenalectomy for solitary adrenal metastasis and assess the factors influencing survival. METHODS: We retrospectively reviewed our institutional clinicopathological database for cases of adrenalectomy for solitary adrenal metastasis from solid tumors between 2000 and 2017. RESULTS: Twenty-five patients underwent open adrenalectomy (n = 11) or laparoscopic adrenalectomy (n = 14). The most common primary site was the lung (n = 7), followed by the kidney (n = 5), liver (n = 3), ovary (n = 2), soft tissue (n = 2), and six other sites. The majority of the patients (n = 19) had metachronous metastasis. The median tumor size was 3.1 cm (1-9 cm). With the median follow-up of 32 months (2-144 months), the median progression-free and overall survivals were 14 and 63 months, respectively. Multivariate analysis revealed that synchronous metastasis (hazard ratio [HR] = 7.5) and tumor size >/= 4 cm (HR = 17.7) were significant prognostic factors for shorter overall survival. There was no significant difference for survival between the laparoscopic and open groups. CONCLUSIONS: Adrenalectomy for solitary adrenal metastasis can be applied for selected patients with various types of malignancy. However, synchronous metastasis and tumor size >/= 4 cm were prognostic factors for shorter overall survival.
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