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Ferronato M, Lizzio CE, Berardinelli D, Marini D, Elia E, Andreetto L, Trentini A, Potenza MC, Serra C, Mazzotta E, Ricci C, Casadei R, Migliori M. Abdominal ultrasound in the characterization of branch-duct intraductal papillary mucinous neoplasms: A new tool for surveillance of low-risk patients? Dig Liver Dis 2023:S1590-8658(23)01029-0. [PMID: 38042636 DOI: 10.1016/j.dld.2023.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/06/2023] [Accepted: 11/07/2023] [Indexed: 12/04/2023]
Abstract
BACKGROUND Magnetic resonance imaging (MRI) is regarded as gold-standard for intraductal papillary mucinous neoplasms (IPMNs) follow-up. Given the low risk of transformation and the increasing population under surveillance, there is growing interest in identifying optimal follow-up strategies. AIM To evaluate reliability of abdominal ultrasound (US) for characterization of low-risk IPMN, compared to MRI. METHODS Prospective monocentric study among 79 consecutive patients with a suspected BD-IPMN on US. Each patient underwent confirmatory MRI. We evaluated Cohen's kappa statistic and concordance rate (CR) between MRI and US. RESULTS Of 79 suspected IPMNs on US, MRI confirmed 71 BD-IPMNs. There was high agreement for cyst location and number (CR and kappa of 77.5 % and 81.7 % and 0.66±0.08 and 0.62±0.11 respectively). We found high agreement for cyst size (CR=96.5 %, kappa=0.93±0.05) and main pancreatic duct (MPD) dilatation (CR=100 %, kappa=1). There was a good agreement for thickened septa (CR=80.3 %, kappa=0.38±0.12). US seems inferior to MRI for the identification of mural nodules < 5 mm (CR=97.2 %, kappa=0). CONCLUSIONS In a cohort of low-risk BD-IPMN, US presented high agreement rate with MRI regarding location, number, and size. There was a good agreement for MPD dilatation and thickened septa, while US underperform for detection of mural nodules < 5 mm.
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Affiliation(s)
- Marco Ferronato
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Internal Medicine Unit, Italy.
| | - Chiara Elide Lizzio
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Internal Medicine Unit, Italy
| | - Dante Berardinelli
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Internal Medicine Unit, Italy
| | - Desy Marini
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Internal Medicine Unit, Italy
| | - Eleonora Elia
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Internal Medicine Unit, Italy
| | - Lorenzo Andreetto
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Internal Medicine Unit, Italy
| | - Alice Trentini
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Internal Medicine Unit, Italy
| | - Maria Chiara Potenza
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Internal Medicine Unit, Italy
| | - Carla Serra
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Interventional Utrasound Unit, Italy
| | - Elena Mazzotta
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Internal Medicine Unit, Italy
| | - Claudio Ricci
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Pancreas and Endocrine Surgery Unit, Italy
| | - Riccardo Casadei
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Pancreas and Endocrine Surgery Unit, Italy
| | - Marina Migliori
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Internal Medicine Unit, Italy
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Watanabe Y, Endo S, Nishihara K, Ueda K, Mine M, Tamiya S, Nakano T, Tanaka M. The validity of the surgical indication for intraductal papillary mucinous neoplasm of the pancreas advocated by the 2017 revised International Association of Pancreatology consensus guidelines. Surg Today 2018; 48:1011-1019. [PMID: 29961172 DOI: 10.1007/s00595-018-1691-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 06/08/2018] [Indexed: 12/12/2022]
Abstract
PURPOSE This study was performed to evaluate the surgical indication for intraductal papillary mucinous neoplasm (IPMN) advocated by the 2017 revised International Association of Pancreatology consensus guidelines (IAPCG2017). METHODS The medical records of 63 patients who underwent pancreatectomy for IPMN were retrospectively reviewed. RESULTS Thirteen patients had main-duct IPMN, 25 had mixed IPMN, and 25 had branch-duct IPMN with frequencies of high-grade dysplasia or invasive carcinoma of 62, 24, and 28%, respectively. The sensitivity and specificity of high-risk stigmata for high-grade dysplasia or invasive carcinoma advocated by the IAPCG2017 were 90 and 67%, respectively. Of 17 patients with invasive carcinoma, all patients had high-risk stigmata, and 16 had an enhanced mural nodule (MN) of ≥ 5 mm. The sensitivity and specificity of a ≥ 5-mm enhanced MN for predicting invasive carcinoma were 94% and 87%, respectively. CONCLUSIONS Introducing a size threshold for enhanced MNs into the assessment of high-risk stigmata increases the specificity without jeopardizing the sensitivity. The surgical indication for any type of IPMN may be determined using only a ≥ 5-mm enhanced MN. When the type of IPMN is classified strictly, about half of IPMNs are mixed type, and most are benign. The surgical indication for mixed IPMN should be reconsidered.
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Affiliation(s)
- Yusuke Watanabe
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokrakita-ku, Kitakyushu, 802-0077, Japan.
| | - Sho Endo
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokrakita-ku, Kitakyushu, 802-0077, Japan
| | - Kazuyoshi Nishihara
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokrakita-ku, Kitakyushu, 802-0077, Japan
| | - Keijiro Ueda
- Department of Gastroenterology, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokrakita-ku, Kitakyushu, 802-0077, Japan
| | - Mari Mine
- Department of Pathology, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokrakita-ku, Kitakyushu, 802-0077, Japan
| | - Sadafumi Tamiya
- Department of Pathology, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokrakita-ku, Kitakyushu, 802-0077, Japan
| | - Toru Nakano
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokrakita-ku, Kitakyushu, 802-0077, Japan
| | - Masao Tanaka
- Department of Surgery, Shimonoseki City Hospital, 1-13-1 Koyo-cho, Shimonoseki, 750-8520, Japan
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Watanabe Y, Nishihara K, Niina Y, Abe Y, Amaike T, Kibe S, Mizuuchi Y, Kakihara D, Ono M, Tamiya S, Toyoshima S, Nakano T, Mitsuyama S. Validity of the management strategy for intraductal papillary mucinous neoplasm advocated by the international consensus guidelines 2012: a retrospective review. Surg Today 2015; 46:1045-52. [PMID: 26689209 DOI: 10.1007/s00595-015-1292-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 10/20/2015] [Indexed: 12/22/2022]
Abstract
PURPOSE The aim of this study was to investigate the validity of the management strategy for intraductal papillary mucinous neoplasms (IPMNs) advocated by the international consensus guidelines 2012 (ICG2012). METHODS The medical records of 49 patients who underwent pancreatectomy for IPMN were retrospectively reviewed. RESULTS According to preoperative imaging, 10 patients (20 %) had main-duct IPMNs, 20 (41 %) had mixed IPMNs, and 19 (39 %) had branch-duct IPMNs, with malignancy frequencies of 80, 15, and 37 %, respectively. Twenty-seven patients had high-risk stigmata and 21 had worrisome features, with malignancy frequencies of 59 and 10 %, respectively. The sensitivity, specificity, and positive and negative predictive values of high-risk stigmata for malignancy were 88, 65, 59, and 91 %, respectively. Lesions were malignant in 88 % of patients with an enhanced solid component, which was significantly correlated with the prevalence of malignancy (P < 0.01). However, of the 10 patients who underwent pancreatectomy solely due to a main pancreatic dilation of ≥10 mm, 9 (90 %) had benign IPMNs. CONCLUSIONS Many mixed IPMNs defined according to ICG2012 are benign. Although the management strategy advocated by ICG2012 has been improved relative to the Sendai criteria, the different high-risk stigmata carry unequal weights. Consequently, ICG2012 remains suboptimal for predicting malignant IPMN.
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Affiliation(s)
- Yusuke Watanabe
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan.
| | - Kazuyoshi Nishihara
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Yusuke Niina
- Department of Gastroenterology, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Yuji Abe
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Takao Amaike
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Shin Kibe
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Yusuke Mizuuchi
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Daisuke Kakihara
- Department of Radiology, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Minoru Ono
- Department of Radiology, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Sadafumi Tamiya
- Department of Pathology, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Satoshi Toyoshima
- Department of Pathology, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Toru Nakano
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Shoshu Mitsuyama
- Department of Surgery, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
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