Gastrointestinal endoscopy · 2008
Pancreatic-duct-lavage cytology in candidates for surgical resection of branch-duct intraductal papillary mucinous neoplasm of the pancreas: should the International Consensus Guidelines be revised?
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Sai Jin Kan, Suyama Masafumi, Kubokawa Yoshihiro, Watanabe Sumio, Maehara Tadayuki
Аннотация
BACKGROUND: The International Consensus Guidelines are helpful for the management of branch-duct intraductal papillary mucinous neoplasms (IPMNs), because they allow us to exclude malignancy. However, it is not possible to predict malignancy with certainty, and further preoperative differentiation between benign and malignant IPMNs is required to avoid the false-positive results.
OBJECTIVE: To examine the usefulness of pancreatic-duct-lavage cytology by using an originally designed double-lumen catheter for discriminating benign and malignant IPMNs of the branch-duct type in candidates for surgical resection based on the International Consensus Guidelines.
PATIENTS: Pancreatic-duct-lavage cytology was investigated in 24 patients with branch-duct IPMNs who underwent surgical resection based on the International Consensus Guidelines, namely, they either had intramural nodules or the ectatic branch duct was >30 mm in diameter.
DESIGN: Single-center retrospective study.
SETTING: Academic medical center.
MAIN OUTCOME MEASUREMENTS: The sensitivity and specificity of pancreatic-duct-lavage cytology for discriminating benign from malignant IPMNs.
RESULTS: More than 30 mL of pancreatic-duct-lavage fluid was obtained from each patient, and there were no patients with noninformative results. The sensitivity, specificity, positive predictive value, and negative predictive value of the cytologic diagnosis were 78%, 93%, 88%, and 88%, respectively.
LIMITATIONS: Single-center and small number of patients.
CONCLUSIONS: Pancreatic-duct-lavage cytology can improve differentiation between benign and malignant IPMNs of the branch-duct type in candidates for surgical resection based on the International Consensus Guidelines.
OBJECTIVE: To examine the usefulness of pancreatic-duct-lavage cytology by using an originally designed double-lumen catheter for discriminating benign and malignant IPMNs of the branch-duct type in candidates for surgical resection based on the International Consensus Guidelines.
PATIENTS: Pancreatic-duct-lavage cytology was investigated in 24 patients with branch-duct IPMNs who underwent surgical resection based on the International Consensus Guidelines, namely, they either had intramural nodules or the ectatic branch duct was >30 mm in diameter.
DESIGN: Single-center retrospective study.
SETTING: Academic medical center.
MAIN OUTCOME MEASUREMENTS: The sensitivity and specificity of pancreatic-duct-lavage cytology for discriminating benign from malignant IPMNs.
RESULTS: More than 30 mL of pancreatic-duct-lavage fluid was obtained from each patient, and there were no patients with noninformative results. The sensitivity, specificity, positive predictive value, and negative predictive value of the cytologic diagnosis were 78%, 93%, 88%, and 88%, respectively.
LIMITATIONS: Single-center and small number of patients.
CONCLUSIONS: Pancreatic-duct-lavage cytology can improve differentiation between benign and malignant IPMNs of the branch-duct type in candidates for surgical resection based on the International Consensus Guidelines.