Toward a Preoperative Classification of Lymph Node Metastases in Patients with Small Intestinal Neuroendocrine Tumors in the Era of Intestinal-Sparing Surgery

Autor: Reza Kianmanesh, Olivia Hentic, S. Lardière-Deguelte, Marie-Pierre Vullierme, Louis de Mestier, Christine Hoeffel, Yves Panis, Guillaume Cadiot, François Appere, Marleny Noaves, Hedia Brixi, Philippe Ruszniewski, Magaly Zappa
Rok vydání: 2015
Předmět:
Adult
Male
medicine.medical_specialty
Endocrinology
Diabetes and Metabolism
Intestinal Neoplasm
medicine.medical_treatment
030209 endocrinology & metabolism
Neuroendocrine tumors
Statistics
Nonparametric
03 medical and health sciences
Cellular and Molecular Neuroscience
0302 clinical medicine
Endocrinology
medicine.artery
Intestinal Neoplasms
medicine
Mesenteric lymph nodes
Humans
Superior mesenteric artery
Stage (cooking)
Lymph node
Aged
Retrospective Studies
Aged
80 and over
integumentary system
Endocrine and Autonomic Systems
business.industry
Thymus Neoplasms
Middle Aged
medicine.disease
Primary tumor
Magnetic Resonance Imaging
Surgery
Neuroendocrine Tumors
medicine.anatomical_structure
030220 oncology & carcinogenesis
Lymphatic Metastasis
Lymphadenectomy
Female
Radiology
Lymph Nodes
business
Zdroj: Neuroendocrinology. 103(5)
ISSN: 1423-0194
Popis: Introduction: In patients with small intestinal neuroendocrine tumors (siNETs), surgical resection of the primary tumor and associated mesenteric lymph nodes (LNs) is recommended, but is not well standardized and can be risky in patients with superior mesenteric vessel involvement. Objective: We aimed to evaluate the correlation between the length of resected small bowel and the number of removed LNs, and to propose a preoperative morphological classification of siNET-associated LNs. Methods: The records of patients operated on for siNETs at two expert centers between August 2005 and November 2013 were analyzed. Two specialist radiologists reviewed the preoperative imaging and classified mesenteric LNs into five stages according to their proximity to the trunk and/or branches of the superior mesenteric artery. Results: 72 patients were included. The mean number of removed LNs was 12 ± 15 and the length of removed small intestine was 53 ± 43 cm. No correlation existed between the length of small bowel resection and the number of removed LNs. Overall, 9 (12%), 13 (18%), 36 (50%), 14 (19%) and 0 patients were classified into LN stages 0, I, II, III and IV. The correlation rate between the two observers was 0.98. Patients with LN stage III (hardly resectable) had more removed LNs than those with LN stages 0, I or II (easily removable). Conclusion: Optimal lymphadenectomy is not always associated with extended small bowel resection. In the era of small bowel-sparing surgery, the preoperative classification of mesenteric LNs could help to standardize the surgical management of patients with siNETs.
Databáze: OpenAIRE
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