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Suraju MO, Snow A, Nayyar A, Chang J, Sherman SK, Hoshi H, Howe JR, Chan CHF. Peritoneal Metastases After Intraductal Papillary Mucinous Neoplasm Resection: How Common are They? J Surg Res 2023; 283:479-484. [PMID: 36436283 PMCID: PMC9877124 DOI: 10.1016/j.jss.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 10/22/2022] [Accepted: 11/06/2022] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Peritoneal metastases (PMs) following resection of pancreatic intraductal papillary mucinous neoplasms (IPMNs) are rare. Consequently, prevalence, risk factors, and prognosis are not well known. We reviewed our institution's experience and published literature to further characterize the scope of this phenomenon. METHODS All pancreatectomy cases (556 patients) performed at a tertiary care center between 2010 and 2020 were reviewed to identify IPMN diagnoses. Patients with adenocarcinoma not arising from IPMN, or a history of other malignancies were excluded. RESULTS Seventy-eight patients underwent pancreatectomy with IPMN on final pathology at our institution; 51 met inclusion criteria. Of these, there were five cases of PMs (4:1 females:males). Four had invasive carcinoma arising from IPMN and one had high-grade dysplasia at the index operation. Female sex and invasive histology were significantly associated with PM (P < 0.05). PM rates by sex were 3% (95% confidence interval [CI]: 0.5-15) in males and 22% (95% CI: 9-45) in females. Rates by histology were 2.9% (95% CI: 0.5-15) for noninvasive IPMN, and 23.5% (95% CI: 9.5-47) for invasive carcinoma arising from IPMN. Median interval from surgery to PMs was 7 mo (range: 3-13). CONCLUSIONS PMs following IPMN resection are rare but may be more common in patients with invasive histology. Although rare, PMs can arise in patients with noninvasive IPMNs. Further studies on pathophysiology and risk factors of PM following IPMN resection are needed and may reinforce adherence to guidelines recommending long-term surveillance.
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Affiliation(s)
- Mohammed O Suraju
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Anthony Snow
- Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Apoorve Nayyar
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Jeremy Chang
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Scott K Sherman
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Holden Comprehensive Cancer Center, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Hisakazu Hoshi
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Holden Comprehensive Cancer Center, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - James R Howe
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Holden Comprehensive Cancer Center, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Carlos H F Chan
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Holden Comprehensive Cancer Center, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
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Geramizadeh B, Marzban M, Shojazadeh A, Kadivar A, Maleki Z. Intraductal papillary mucinous neoplasm of the pancreas: Cytomorphology, imaging, molecular profile, and prognosis. Cytopathology 2021; 32:397-406. [PMID: 33792980 DOI: 10.1111/cyt.12973] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 02/15/2021] [Accepted: 02/24/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Intraductal papillary mucinous neoplasm (IPMN) constitutes up to 20% of all pancreatic resections, and has been increasing in recent years. Histomorphological findings of IPMN are well established; however, there are not many published papers regarding the cytological findings of IPMN on fine needle aspiration (FNA) specimens. We review the cytomorphological features, molecular profile, imaging findings, and prognosis of IPMN. METHODS The English literature was thoroughly searched with key phrases containing IPMN. OBSERVATIONS IPMN is a rare entity, affecting men and women equally and is usually diagnosed at the age of 60-70 years. The characteristic imaging features include a cystic lesion with associated dilatation of the main or branch pancreatic duct, and atrophy of surrounding pancreatic parenchyma. Cytomorphological features of IPMN include papillary fragments of mucinous epithelium in a background of abundant thick extracellular mucin, a hallmark feature. IPMNs should be evaluated for high-grade dysplasia, which manifests with nuclear atypia, nuclear moulding, prominent nucleoli, nuclear irregularity, and cellular crowding. Molecular profiling of IPMN along with carcinoembryonic antigen and amylase levels is useful in predicting malignancy or high-grade dysplasia arising in IPMN. Overall, the prognosis of IPMN is excellent except in those cases with high-grade dysplasia and malignant transformation. Postoperative surveillance is required for resected IPMNs. CONCLUSION IPMN requires a multidisciplinary approach for management. Cytomorphological findings of IPMN on FNA, in conjunction with tumour markers in pancreatic fluid cytology and imaging findings, are of paramount importance in clinical decision-making for IPMN.
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Affiliation(s)
- Bita Geramizadeh
- Department of Pathology, Medical School of Shiraz University, Shiraz University of Medical Sciences, Shiraz, Iran.,Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahsa Marzban
- University of British Columbia, Vancouver, BC, Canada
| | - Alireza Shojazadeh
- Department of Pathology, Medical School of Shiraz University, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ana Kadivar
- University of Maryland, College Park, MD, USA
| | - Zahra Maleki
- Division of Cytopathology, Department of Pathology, The Johns-Hopkins Hospital, Baltimore, MD, USA
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Li B, Shi X, Gao S, Shen S, Bian Y, Cao K, Pan Y, Zhang G, Jiang H, Li G, Guo S, Jin G. Nomogram for the Prediction of High-Grade Dysplasia and Invasive Carcinoma in Patients With Intraductal Papillary Mucinous Neoplasms of the Pancreas Based on Variables of Noninvasive Examination. Front Oncol 2021; 11:609187. [PMID: 33767983 PMCID: PMC7985057 DOI: 10.3389/fonc.2021.609187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 02/02/2021] [Indexed: 12/12/2022] Open
Abstract
Intraductal papillary mucinous neoplasms (IPMNs) are a heterogeneous group of neoplasms and represent the most common identifiable precursor lesions of pancreatic cancer. Clinical decision-making of the risk for malignant disease, including high-grade dysplasia and invasive carcinoma, is challenging. Moreover, discordance on the indication for resection exists between the contemporary guidelines. Furthermore, most of the current nomogram models for predicting malignant disease depend on endoscopic ultrasonography to evaluate the precise size of mural nodules. Thus, this study aimed to propose a model to predict malignant disease using variables from a noninvasive examination. We evaluated patients who underwent resection of pathologically confirmed IPMNs between November 2010 and December 2018 and had preoperative clinical data available for review. Based on binary multivariable logistic regression analysis, we devised a nomogram model to predict malignant IPMNs. The area under the receiver operating characteristics curve (AUC) was used to evaluate the discrimination power of the model. Of the 333 patients who underwent resection of IPMNs, 198 (59.5%) had benign and 135 (40.5%) had malignant IPMNs. Multivariable logistic regression analysis showed that cyst size, cyst location, cyst wall enhancement, multicystic lesion, diameter of main pancreatic duct, neutrophil-to-lymphocyte ratio, serum carbohydrate antigen 19-9, and carcinoembryonic antigen were significantly associated with malignancy. The nomogram, constructed based on these variables, showed excellent discrimination power with an AUC of 0.859 (95% CI: 0.818–0.900, P < 0.001). In conclusion, we have developed a nomogram consisting of a combination of cross-sectional imaging features and blood markers, variables that can readily be obtained by noninvasive examinations during the surveillance period, which can distinguish benign from malignant IPMNs. Nevertheless, external validation is warranted.
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Affiliation(s)
- Bo Li
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China.,Department of General Surgery, Beidaihe Rehabilitation and Recuperation Center of PLA, Qinhuangdao, China
| | - Xiaohan Shi
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
| | - Suizhi Gao
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
| | - Shuo Shen
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
| | - Yun Bian
- Department of Radiology, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
| | - Kai Cao
- Department of Radiology, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
| | - Yaqi Pan
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
| | - Guoxiao Zhang
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
| | - Hui Jiang
- Department of Pathology, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
| | - Gang Li
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
| | - Shiwei Guo
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
| | - Gang Jin
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital Affiliated to Navy Medical University, Shanghai, China
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