Abstract
Purpose
The objectives of this retrospective study were to describe the characteristics and topography of pancreatic ductal adenocarcinoma and its early local recurrence after pancreaticoduodenectomy and identify predictive factors of local early recurrence by imaging computed tomography (CT).
Methods
The institutional review board approved the study and did require additional informed consent for reviewing the patients’ medical records and images. Patients who underwent pancreaticoduodenectomy for ductal adenocarcinoma, a preoperative CT scan, and adequate postoperative CT were included. After postoperative imaging, correlations among clinical and histological characteristics and preoperative imaging were evaluated.
Results
Among the 123 patients who underwent pancreaticoduodenectomy, 48 patients had sufficient follow-up imaging and were included in this study. A total of 33 patients experienced local early recurrence (Group 1), and 15 exhibited no local recurrence (Group 2). Local recurrence consisted of two types of anomalies: tissue nodules on surgical clips (94 %) and peri-arterial encasement (82 %). On preoperative imaging, the tumor diameter (p = 0.02) and the presence of a venous borderline resectable tumor (p < 0.0001) were predictive of local recurrence.
Conclusions
Tissue nodules on surgical clips and arterial encasement characterize early local recurrence, and nodules and encasement should not be considered common post-operative infiltration. The role of the radiologist is essential to assess the predictive factors of recurrence and to identify early local recurrence.
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Balaj, C., Ayav, A., Oliver, A. et al. CT imaging of early local recurrence of pancreatic adenocarcinoma following pancreaticoduodenectomy. Abdom Radiol 41, 273–282 (2016). https://doi.org/10.1007/s00261-015-0564-z
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DOI: https://doi.org/10.1007/s00261-015-0564-z