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Donati F, Cervelli R, Boraschi P. Rare pancreatic cystic neoplasms: A pictorial review. Eur J Radiol Open 2025; 14:100620. [DOI: 10.1016/j.ejro.2024.100620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2025] Open
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2
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Jain V, Chatterjee D, Bhujade H, Kurdia KC. Cystic pancreatic neuroendocrine tumour (cPNET): a diagnostic conundrum. ANZ J Surg 2024; 94:2084-2086. [PMID: 39350688 DOI: 10.1111/ans.19251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2024] [Accepted: 09/22/2024] [Indexed: 11/20/2024]
Affiliation(s)
- Vibhu Jain
- Department of General Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Debajyoti Chatterjee
- Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Harish Bhujade
- Department of Radiodiagnosis, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kailash Chand Kurdia
- Department of GI Surgery and Liver Transplantation, All India Institute of Medical Sciences, New Delhi, India
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3
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Lopes Vendrami C, Hammond NA, Escobar DJ, Zilber Z, Dwyer M, Moreno CC, Mittal PK, Miller FH. Imaging of pancreatic serous cystadenoma and common imitators. Abdom Radiol (NY) 2024; 49:3666-3685. [PMID: 38825609 DOI: 10.1007/s00261-024-04337-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 06/04/2024]
Abstract
Pancreatic cystic neoplasms are lesions comprised of cystic components that show different biological behaviors, epidemiology, clinical manifestations, imaging features, and malignant potential and management. Benign cystic neoplasms include serous cystic neoplasms (SCAs). Other pancreatic cystic lesions have malignant potential, such as intraductal papillary mucinous neoplasms and mucinous cystic neoplasms. SCAs can be divided into microcystic (classic appearance), honeycomb, oligocystic/macrocystic, and solid patterns based on imaging appearance. They are usually solitary but may be multiple in von Hippel-Lindau disease, which may depict disseminated involvement. The variable appearances of SCAs can mimic other types of pancreatic cystic lesions, and cross-sectional imaging plays an important role in their differential diagnosis. Endoscopic ultrasonography has helped in improving diagnostic accuracy of pancreatic cystic lesions by guiding tissue sampling (biopsy) or cyst fluid analysis. Immunohistochemistry and newer techniques such as radiomics have shown improved performance for preoperatively discriminating SCAs and their mimickers.
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Affiliation(s)
- Camila Lopes Vendrami
- Department of Radiology, Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, 676 N. St. Clair St. Suite 800, Chicago, IL, 60611, USA
| | - Nancy A Hammond
- Department of Radiology, Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, 676 N. St. Clair St. Suite 800, Chicago, IL, 60611, USA
| | - David J Escobar
- Department of Pathology, Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Zachary Zilber
- Department of Radiology, Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, 676 N. St. Clair St. Suite 800, Chicago, IL, 60611, USA
| | - Meaghan Dwyer
- Department of Radiology, Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, 676 N. St. Clair St. Suite 800, Chicago, IL, 60611, USA
| | - Courtney C Moreno
- Department of Radiology and Imaging Sciences, Emory School of Medicine, Atlanta, GA, 30322, USA
| | - Pardeep K Mittal
- Department of Radiology and Imaging, Medical College of Georgia, Augusta, GA, 30912, USA
| | - Frank H Miller
- Department of Radiology, Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, 676 N. St. Clair St. Suite 800, Chicago, IL, 60611, USA.
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4
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Yasrab M, Kwak SJ, Khoshpouri P, Fishman EK, Zaheer A. Misdiagnosis of pancreatic intraductal papillary mucinous neoplasms and the challenge of mimicking lesions: imaging diagnosis and differentiation strategies. Abdom Radiol (NY) 2024:10.1007/s00261-024-04551-x. [PMID: 39327307 DOI: 10.1007/s00261-024-04551-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 08/20/2024] [Accepted: 08/25/2024] [Indexed: 09/28/2024]
Abstract
The rising prevalence of pancreatic cystic lesions (PCLs), particularly intraductal papillary neoplasms (IPMNs), has been attributed to increased utilization of advanced imaging techniques. Incidental detection of PCLs is frequent in abdominal CT and MRI scans, with IPMNs representing a significant portion of these lesions. Surveillance of IPMNs is recommended due to their malignant potential; however, their overlapping imaging features with benign entities can lead to misdiagnosis, overtreatment, and overutilization of healthcare resources. This paper aims to highlight and differentiate lesions often mistaken for IPMNs, providing insight into their imaging characteristics, diagnostic challenges, and distinctive features while highlighting the incidence of wrong diagnosis for these lesions. These lesions include serous cystadenomas, cystic pancreatic neuroendocrine tumors, mucinous cystic neoplasms, lymphoepithelial cysts, duodenal diverticula, pancreatic schwannomas, chronic pancreatitis, retention cysts, intrapancreatic accessory spleens, pancreatic lipomas, choledochal cysts, and others. Utilizing various imaging modalities, including contrast-enhanced CT, MRI, and EUS, alongside histological and molecular analyses, can aid in accurate diagnosis and appropriate management. Understanding these mimicry scenarios is crucial to avoid unnecessary surveillance, interventions, and the burden they place on both patients and healthcare systems. Improved recognition of these lesions can lead to better patient outcomes and resource allocation.
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Affiliation(s)
- Mohammad Yasrab
- Johns Hopkins Hospital, 1800 Orleans St., Baltimore, MD, 21287, USA.
| | - Stephen J Kwak
- Johns Hopkins Hospital, 1800 Orleans St., Baltimore, MD, 21287, USA.
| | | | - Elliot K Fishman
- Johns Hopkins Hospital, 1800 Orleans St., Baltimore, MD, 21287, USA
| | - Atif Zaheer
- Johns Hopkins Hospital, 1800 Orleans St., Baltimore, MD, 21287, USA
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5
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Rogowska J, Semeradt J, Durko Ł, Małecka-Wojciesko E. Diagnostics and Management of Pancreatic Cystic Lesions-New Techniques and Guidelines. J Clin Med 2024; 13:4644. [PMID: 39200786 PMCID: PMC11355509 DOI: 10.3390/jcm13164644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 08/01/2024] [Accepted: 08/06/2024] [Indexed: 09/02/2024] Open
Abstract
Pancreatic cystic lesions (PCLs) are increasingly diagnosed owing to the wide use of cross-sectional imaging techniques. Accurate identification of PCL categories is critical for determining the indications for surgical intervention or surveillance. The classification and management of PCLs rely on a comprehensive and interdisciplinary evaluation, integrating clinical data, imaging findings, and cyst fluid markers. EUS (endoscopic ultrasound) has become the widely used diagnostic tool for the differentiation of pancreatic cystic lesions, offering detailed evaluation of even small pancreatic lesions with high sensitivity and specificity. Additionally, endoscopic ultrasound-fine-needle aspiration enhances diagnostic capabilities through cytological analysis and the assessment of fluid viscosity, tumor glycoprotein concentration, amylase levels, and molecular scrutiny. These detailed insights play a pivotal role in improving the clinical prognosis and management of pancreatic neoplasms. This review will focus mainly on the latest recommendations for the differentiation, management, and treatment of pancreatic cystic lesions, highlighting their clinical significance.
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Affiliation(s)
- Jagoda Rogowska
- Department of Digestive Tract Diseases, Medical University of Lodz, 90-647 Lodz, Poland; (J.S.); (Ł.D.); (E.M.-W.)
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6
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Vlăduţ C, Bilous D, Ciocîrlan M. Real-Life Management of Pancreatic Cysts: Simplified Review of Current Guidelines. J Clin Med 2023; 12:4020. [PMID: 37373713 DOI: 10.3390/jcm12124020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Pancreatic cysts are becoming a popular diagnostic tool due to the increased availability of high-quality cross-sectional imaging. Pancreatic cystic lesions constitute closed, liquid-containing cavities, which are either neoplastic or non-neoplastic. While serous lesions often follow a benign course, mucinous lesions can hide carcinoma and, therefore, require different management. Moreover, all cysts should be considered mucinous until proven otherwise, thus limiting the errors in managing these entities. Due to the need for high contrast soft tissue imaging, magnetic resonance imaging represents an elective, non-invasive diagnostic tool. Endoscopic ultrasound (EUS) has started gaining more prominence with regard to the proper diagnosis and management of pancreatic cysts, offering quality information with minimal risks. Enabling both the acquisition of endoscopic images of the papilla and the endosonographic high-quality evaluation of septae, mural nodules along with the vascular patterns of the lesion contribute to a definitive diagnosis. Moreover, the possibility of obtaining cytological or histological samples could become mandatory in the foreseeable future, allowing for more precise molecular testing. Future research should focus on detecting methods to quickly diagnose high-grade dysplasia or early cancer for patients with pancreatic cysts, thus allowing time for appropriate treatment and avoiding surgical overtreatment or over surveillance in selected cases.
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Affiliation(s)
- Cătălina Vlăduţ
- Department 5, "Carol Davila" University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Gastroenterology Department, "Prof Dr Agrippa Ionescu" Emergency Hospital, 011356 Bucharest, Romania
| | - Dana Bilous
- Gastroenterology Department, "Prof Dr Agrippa Ionescu" Emergency Hospital, 011356 Bucharest, Romania
| | - Mihai Ciocîrlan
- Department 5, "Carol Davila" University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Gastroenterology Department, "Prof Dr Agrippa Ionescu" Emergency Hospital, 011356 Bucharest, Romania
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7
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Neuroendocrine neoplasm imaging: protocols by site of origin. ABDOMINAL RADIOLOGY (NEW YORK) 2022; 47:4081-4095. [PMID: 36307597 DOI: 10.1007/s00261-022-03713-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/09/2022] [Accepted: 10/11/2022] [Indexed: 01/18/2023]
Abstract
With the relatively low incidence of neuroendocrine neoplasms (NEN), most radiologists are not familiar with their optimal imaging techniques. The imaging protocols for NENs should be tailored to the site of origin to accurately define local extension of NEN at time of staging. Patterns of spread and recurrence should be taken into consideration when choosing protocols for detection of recurrence and metastases. This paper will present the recommended CT and MRI imaging protocols for gastro-enteric and pancreatic NENs based on site of origin or predominant pattern of metastatic disease, and explain the rationale for MRI contrast type, contrast timing, as well as specific sequences in MRI. We will also briefly comment on PET/CT and PET/MRI imaging protocols.
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8
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Osama MA, Mathayoth M, Agarwal S, Chatterjee P. Cystic Pancreatic Neuroendocrine Tumor: A Diagnostic Dilemma. J Lab Physicians 2022; 15:159-161. [PMID: 37064984 PMCID: PMC10104712 DOI: 10.1055/s-0042-1750079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
Abstract
AbstractPancreatic neuroendocrine tumors are typically solid neoplasms but in rare instances may present as cystic lesions. Preoperative diagnosis of a cystic pancreatic lesion is challenging and requires a multidisciplinary and multimodal approach. We hereby describe an elderly female who came with complaints of abdominal lump. Radiologically, it appeared to be a pancreatic hydatid cyst located at the head of the pancreas, following which resection was done. Histopathological study of the lesion turned out to be a cystic pancreatic neuroendocrine tumor. Thus, we present this unique case due to its rarity and diagnostic challenge.
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Affiliation(s)
- Md Ali Osama
- Department of Pathology, Lady Hardinge Medical College, New Delhi, India
| | - Meera Mathayoth
- Department of Pathology, Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Shilpi Agarwal
- Department of Pathology, Lady Hardinge Medical College, New Delhi, India
| | - Priti Chatterjee
- Department of Pathology, Lady Hardinge Medical College, New Delhi, India
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Mitrovic-Jovanovic M, Grubor N, Milosevic S, Jankovic A, Stosic K, Ostojic S, Ninic A, Micev M, Djokic Kovac J. Total Pancreatectomy for Multicentric Cystic Neuroendocrine Tumor of the Pancreas: A Case Report. Diagnostics (Basel) 2022; 12:diagnostics12041003. [PMID: 35454051 PMCID: PMC9028915 DOI: 10.3390/diagnostics12041003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 02/01/2023] Open
Abstract
Pancreatic neuroendocrine tumors (PNETs) are uncommon pancreatic neoplasms with malignant potential, heterogeneous clinical behavior, as well as imaging appearance. These tumors represent less than 3% of all pancreatic neoplasms with typical CT presentation as solid, well-circumscribed, hypervascular lesions. Cystic PNET is a rare pancreatic tumor which is nowadays more often detected due to the widespread use of high-resolution cross-sectional imaging. They are mainly solitary lesions most commonly localized in the body and the tail of the pancreas. Due to cystic presentation these lesions often present a diagnostic challenge to both experienced radiologists and pathologists. Herein, we present a rare case of synchronous, multiple cystic and solid pancreatic neuroendocrine tumors, which due to their extensiveness required total dudenopancreatectomy with splenectomy. Histopathological findings confirmed microscopic and macroscopic cystic components as well as typical solid variants of neuroendocrine tumors along the entire pancreas.
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Affiliation(s)
- Milica Mitrovic-Jovanovic
- Center for Radiology and Magnetic Resonance Imaging, University Clinical Centre of Serbia, Pasterova No. 2, 11000 Belgrade, Serbia; (S.M.); (A.J.); (K.S.); (J.D.K.)
- Correspondence: ; Tel.: +381-63-8064620
| | - Nikica Grubor
- Department for HBP Surgery, Clinic for Digestive Surgery, University Clinical Centre of Serbia, Koste Todorovica Street No. 6, 11000 Belgrade, Serbia; (N.G.); (S.O.); (A.N.)
- Department for Surgery with Anesthesiology, Faculty of Medicine, University of Belgrade, Dr Subotica No. 8, 11000 Belgrade, Serbia
| | - Stefan Milosevic
- Center for Radiology and Magnetic Resonance Imaging, University Clinical Centre of Serbia, Pasterova No. 2, 11000 Belgrade, Serbia; (S.M.); (A.J.); (K.S.); (J.D.K.)
| | - Aleksandra Jankovic
- Center for Radiology and Magnetic Resonance Imaging, University Clinical Centre of Serbia, Pasterova No. 2, 11000 Belgrade, Serbia; (S.M.); (A.J.); (K.S.); (J.D.K.)
| | - Katarina Stosic
- Center for Radiology and Magnetic Resonance Imaging, University Clinical Centre of Serbia, Pasterova No. 2, 11000 Belgrade, Serbia; (S.M.); (A.J.); (K.S.); (J.D.K.)
| | - Slavenko Ostojic
- Department for HBP Surgery, Clinic for Digestive Surgery, University Clinical Centre of Serbia, Koste Todorovica Street No. 6, 11000 Belgrade, Serbia; (N.G.); (S.O.); (A.N.)
- Department for Surgery with Anesthesiology, Faculty of Medicine, University of Belgrade, Dr Subotica No. 8, 11000 Belgrade, Serbia
| | - Aleksandar Ninic
- Department for HBP Surgery, Clinic for Digestive Surgery, University Clinical Centre of Serbia, Koste Todorovica Street No. 6, 11000 Belgrade, Serbia; (N.G.); (S.O.); (A.N.)
| | - Marjan Micev
- Department for Pathology, Clinic for Digestive Surgery, University Clinical Centre of Serbia, Koste Todorovica Street No. 6, 11000 Belgrade, Serbia;
| | - Jelena Djokic Kovac
- Center for Radiology and Magnetic Resonance Imaging, University Clinical Centre of Serbia, Pasterova No. 2, 11000 Belgrade, Serbia; (S.M.); (A.J.); (K.S.); (J.D.K.)
- Department for Radiology, Faculty of Medicine, University of Belgrade, Dr Subotica No. 8, 11000 Belgrade, Serbia
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Hickman K, Sadler T, Zhang T, Boninsegna E, Majcher V, Godfrey E. Pancreatic cystic lesions and the role of contrast enhanced endoscopic ultrasound. Clin Radiol 2022; 77:418-427. [PMID: 35387743 DOI: 10.1016/j.crad.2022.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 02/22/2022] [Indexed: 11/16/2022]
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11
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Bazaga S, Morales-Alvarado J, Bas-Cutrina F, Fernandez Monclús E, Méndez Coca I. Cystic pancreatic neuroendocrine tumours: a multidisciplinary diagnostic challenge. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2022; 114:691-692. [DOI: 10.17235/reed.2022.8709/2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Buerlein RCD, Shami VM. Management of pancreatic cysts and guidelines: what the gastroenterologist needs to know. Ther Adv Gastrointest Endosc 2021; 14:26317745211045769. [PMID: 34589706 PMCID: PMC8474323 DOI: 10.1177/26317745211045769] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 08/25/2021] [Indexed: 12/15/2022] Open
Abstract
The prevalence of pancreatic cysts has increased significantly over the last
decade, partly secondary to increased quality and frequency of cross-sectional
imaging. While the majority never progress to cancer, a small number will and
need to be followed. The management of pancreatic cysts can be both confusing
and intimidating due to the multiple guidelines with varying recommendations.
Despite the differences in the specifics of the guidelines, they all agree on
several high-risk features that should get the attention of any clinician when
assessing a pancreatic cyst: presence of a mural nodule or solid component,
dilation of the main pancreatic duct (or presence of main duct intraductal
papillary mucinous neoplasm), pancreatic cyst size ⩾3–4 cm, or positive cytology
on pancreatic cyst fluid aspiration. Other important criteria to consider
include rapid cyst growth (⩾5 mm/year), elevated serum carbohydrate antigen 19-9
levels, new-onset diabetes mellitus, or acute pancreatitis thought to be related
to the cystic lesion.
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Affiliation(s)
| | - Vanessa M Shami
- University of Virginia Digestive Health, 1215 Lee Street, Charlottesville, VA 22903, USA
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Imaging of Pancreatic Neuroendocrine Neoplasms. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18178895. [PMID: 34501485 PMCID: PMC8430610 DOI: 10.3390/ijerph18178895] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/16/2021] [Accepted: 08/22/2021] [Indexed: 12/25/2022]
Abstract
Pancreatic neuroendocrine neoplasms (panNENs) represent the second most common pancreatic tumors. They are a heterogeneous group of neoplasms with varying clinical expression and biological behavior, from indolent to aggressive ones. PanNENs can be functioning or non-functioning in accordance with their ability or not to produce metabolically active hormones. They are histopathologically classified according to the 2017 World Health Organization (WHO) classification system. Although the final diagnosis of neuroendocrine tumor relies on histologic examination of biopsy or surgical specimens, both morphologic and functional imaging are crucial for patient care. Morphologic imaging with ultrasonography (US), computed tomography (CT) and magnetic resonance imaging (MRI) is used for initial evaluation and staging of disease, as well as surveillance and therapy monitoring. Functional imaging techniques with somatostatin receptor scintigraphy (SRS) and positron emission tomography (PET) are used for functional and metabolic assessment that is helpful for therapy management and post-therapeutic re-staging. This article reviews the morphological and functional imaging modalities now available and the imaging features of panNENs. Finally, future imaging challenges, such as radiomics analysis, are illustrated.
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Cystic pancreatic lesions: MR imaging findings and management. Insights Imaging 2021; 12:115. [PMID: 34374885 PMCID: PMC8355307 DOI: 10.1186/s13244-021-01060-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 07/17/2021] [Indexed: 12/14/2022] Open
Abstract
Cystic pancreatic lesions (CPLs) are frequently casual findings in radiological examinations performed for other reasons in patients with unrelated symptoms. As they require different management according to their histological nature, differential diagnosis is essential. Radiologist plays a key role in the diagnosis and management of these lesions as imaging is able to correctly characterize most of them and thus address to a correct management. The first step for a correct characterization is to look for a communication between the CPLs and the main pancreatic duct, and then, it is essential to evaluate the morphology of the lesions. Age, sex and a history of previous pancreatic pathologies are important information to be used in the differential diagnosis. As some CPLs with different pathologic backgrounds can show the same morphological findings, differential diagnosis can be difficult, and thus, the final diagnosis can require other techniques, such as endoscopic ultrasound, endoscopic ultrasound-fine needle aspiration and endoscopic ultrasound-through the needle biopsy, and multidisciplinary management is important for a correct management.
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Khalil A, Ewald J, Marchese U, Autret A, Garnier J, Niccoli P, Piana G, Poizat F, Giovannini M, Delpero JR, Turrini O. A single-center experience with pancreatic cystic neuroendocrine tumors. World J Surg Oncol 2020; 18:208. [PMID: 32799893 PMCID: PMC7429455 DOI: 10.1186/s12957-020-01994-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/06/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Pancreatic neuroendocrine tumors (PNET) are rare, with a significant malignant potential. This study aimed to determine outcomes of patients with resected PNETs according to the cystic component and confirm the accuracy of preoperative staging. METHODS From 1997 to 2016, 106 patients underwent resection of PNETs, including 73 purely solid (S-PNETs, 69%), 21 mixed (M-PNETs, 20%), and 12 purely cystic lesions (C-PNETs, 11%). To ensure consistent comparisons of overall (OS) and disease-free (DFS) survival outcomes between the 3 groups, the patients were matched according to the World Health Organization (WHO) grade and tumor height. RESULTS Overall, the rate of correlation between the preoperative and pathological diagnoses was low in the C-PNET group (33%, P = 0.03). None of the 24 patients (23%) with metastatic disease at the time of surgery were in the C-PNET group. Furthermore, significantly more parenchyma-sparing resections (P = 0.039) and fewer enlarged resections (P = 0.019) were achieved in the C-PNET group. C-PNET group had a significantly lower node invasion rate than the S-PNET and M-PNET groups (8% vs. 41% and 24%, P = 0.004). Although median OS was comparable in all 3 groups before (P = 0.3) and after (P = 0.18) matching, higher median DFS was observed in the C-PNET group than in the other groups after matching (P = 0.038). CONCLUSION C-PNET was associated with a better prognosis than PNET with a solid component. The results support a wait-and-see policy in cases wherein a reliable preoperative diagnosis remains challenging.
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Affiliation(s)
- Ange Khalil
- Department of Surgery, ENETS co-E IPC NET Center, Institut Paoli-Calmettes, 232 Boulevard Sainte Marguerite, 13009, Marseille, France.
| | - Jacques Ewald
- Department of Surgery, ENETS co-E IPC NET Center, Institut Paoli-Calmettes, 232 Boulevard Sainte Marguerite, 13009, Marseille, France
| | - Ugo Marchese
- Department of Surgery, ENETS co-E IPC NET Center, Institut Paoli-Calmettes, 232 Boulevard Sainte Marguerite, 13009, Marseille, France
| | - Aurélie Autret
- Department of Biostatistics, Institut Paoli-Calmettes, Marseille, France
| | - Jonathan Garnier
- Department of Surgery, ENETS co-E IPC NET Center, Institut Paoli-Calmettes, 232 Boulevard Sainte Marguerite, 13009, Marseille, France
| | - Patricia Niccoli
- Department of Oncology, Institut Paoli-Calmettes, Marseille, France
| | - Gilles Piana
- Department of Radiology, Institut Paoli-Calmettes, Marseille, France
| | - Flora Poizat
- Department of Pathology, Institut Paoli-Calmettes, Marseille, France
| | - Marc Giovannini
- Department of Endoscopy, Institut Paoli-Calmettes, Marseille, France
| | - Jean-Robert Delpero
- Department of Surgery, ENETS co-E IPC NET Center, Institut Paoli-Calmettes, 232 Boulevard Sainte Marguerite, 13009, Marseille, France
| | - Olivier Turrini
- Department of Surgery, CNRS, Inserm, CRCM, Institut Paoli-Calmettes, Aix-Marseille University, Marseille, France
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Noda K, Kuroki T, Yamashita M, Hirayama T, Natsuda K, Kobayashi S, Tokunaga T, Yamanouchi K, Takeshita H, Miura S, Maeda S. Nondegenerated cystic neuroendocrine tumor of the pancreas: a case report. Surg Case Rep 2020; 6:154. [PMID: 32601808 PMCID: PMC7324457 DOI: 10.1186/s40792-020-00918-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 06/19/2020] [Indexed: 11/20/2022] Open
Abstract
Background Pancreatic neuroendocrine tumors (PNETs) are typically solid neoplasms but, in very rare cases, present as cystic lesions. We describe a case of a cystic neuroendocrine tumor that developed as a small cystic lesion. Case presentation In 2011, a 66-year-old Japanese woman underwent computed tomography (CT) that revealed a cystic lesion in the tail of the pancreas measuring 9 mm. She did not have any symptoms. She underwent a CT scan every year thereafter. The cystic lesion gradually increased and was 40 mm in 2019; endoscopic retrograde pancreatography (ERP) was then performed. Cytological examination demonstrated class IIIb adenocarcinoma, and we conducted laparoscopic distal pancreatectomy. Pathological examination showed PNET. Conclusion Although cystic change of PNET is generally caused by ischemia or necrosis inside the tumor, in our case, PNET occurred as a small cyst that increased without changing form.
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Affiliation(s)
- Keisuke Noda
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan.
| | - Tamotsu Kuroki
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan
| | - Mampei Yamashita
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan
| | - Takanori Hirayama
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan
| | - Koji Natsuda
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan
| | - Shinichiro Kobayashi
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan
| | - Takayuki Tokunaga
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan
| | - Kosho Yamanouchi
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan
| | - Hiroaki Takeshita
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan
| | - Shiro Miura
- Department of Pathology, National Hospital Organization Nagasaki Medical Center, Omura, Japan
| | - Shigeto Maeda
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan
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17
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Amarjothi J, Jesudason J, Ramasamy V, Babu ON. Interesting pancreatic tumour in the background of Tuberous Sclerosis. BMJ Case Rep 2019; 12:12/8/e227292. [PMID: 31383671 DOI: 10.1136/bcr-2018-227292] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Tuberous Sclerosis Complex (TSC) is easily discernible by a myriad of manifestations, most notably dermatological. It is associated with well known and recognised intra-abdominal tumours like angiomyolipoma of the kidney. However, rarer tumours like pancreatic neuroendocrine tumours can occur in the setting of TSC. A high index of suspicion is necessary to identify and treat these lesions early in their natural course. Early identification augurs well with complete surgical excision and excellent survival.
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Affiliation(s)
- Jmv Amarjothi
- Department of Surgical Gastroenterology, Madras Medical College and Government General Hospital, Chennai, Tamil Nadu, India
| | - Jeyasudhahar Jesudason
- Department of Surgical Gastroenterology, Madras Medical College and Government General Hospital, Chennai, Tamil Nadu, India
| | - Villalan Ramasamy
- Department of Surgical Gastroenterology, Madras Medical College and Government General Hospital, Chennai, Tamil Nadu, India
| | - Ol Naganath Babu
- Department of Surgical Gastroenterology, Madras Medical College and Research Institute, Chennai, Tamil Nadu, India
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18
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Zhu JK, Wu D, Xu JW, Huang X, Jiang YY, Edil BH, Li M, Hu SY, Zhan HX. Cystic pancreatic neuroendocrine tumors: A distinctive subgroup with indolent biological behavior? A systematic review and meta-analysis. Pancreatology 2019; 19:738-750. [PMID: 31160191 DOI: 10.1016/j.pan.2019.05.462] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/24/2019] [Accepted: 05/26/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES The clinicopathological features and biological behaviors of cystic pancreatic neuroendocrine tumors (pNETs) are unclear and controversial. Here we performed a systematic review and meta-analysis to investigate the unique characteristics of cystic pNETs, to determine whether they represent a distinct clinical entity. METHODS We selected comparative studies published since January 2000 that explore the differences between clinicopathological features of cystic and solid pNETs. Demographic information, pathological characteristics, and survival information were analyzed. RESULT The 12 selected studies comprised 355 and 1530 patients diagnosed with cystic and solid pNETs, respectively. Compared with solid pNETs, cystic pNETs were less likely to be functional (odds ratio, OR = 0.31, 95% confidence interval (CI) 0.19-0.50, p < 0.00001), more likely to affect males (OR = 1.56, 95% CI 1.22-2.00, p = 0.0005), and significantly associated with multiple endocrine neoplasia type 1 (OR = 2.71). Cystic pNETs were more likely to present with G1 and G2 rather than G3 (OR = 1.66). Cystic pNETs were associated with less frequent distant organs and lymph node metastasis, microvascular invasion, perineural invasion, and a low Ki-67 index and mitotic count. There were no significant differences between 5- and 10-year overall survival. However, the 5-year disease-free survival (DFS) and 10-year DFS rate of patients with cystic pNETs was significantly higher compared with those with solid pNETs (94.6% vs 83.5%, OR = 3.00; 92.7% vs 63.6%, OR = 5.92, respectively). CONCLUSIONS Cystic pNETs represent a distinct subgroup of pNETs that present with an indolent biological behavior, and patients experience better DFS. Observation and surveillance should be considered in some selected cases.
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Affiliation(s)
- Jian-Kang Zhu
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Dong Wu
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Jian-Wei Xu
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Xin Huang
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Yuan-Yuan Jiang
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital Shandong University, Jinan, 250012, China
| | - Barish H Edil
- Department of Surgery, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Min Li
- Department of Surgery, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Department of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - San-Yuan Hu
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Han-Xiang Zhan
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China.
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19
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Carr RA, Bletsis P, Roch AM, House MG, Zyromski NJ, Nakeeb A, Schmidt CM, Ceppa EP. Cystic pancreatic neuroendocrine tumors: A more favorable lesion? Pancreatology 2019; 19:372-376. [PMID: 30704851 DOI: 10.1016/j.pan.2019.01.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/14/2019] [Accepted: 01/20/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Pancreatic neuroendocrine tumors (PNETs) are predominantly solid lesions with malignant potential. Cystic PNETs are a small subset in which data are scarce. The aim of this study was to compare clinical and biologic differences between cystic and solid PNETs. METHODS Patients with PNETs undergoing pancreatectomy between 1988 and 2016 at a high-volume center were reviewed retrospectively. Demographic, clinical, and histopathologic data were collected and analyzed. RESULTS 347 patients with PNETs were identified; 27% (n = 91) were cystic. Patients with cystic PNETs were generally older (59 vs. 55 years, p = 0.05). Cystic PNETs were more commonly non-functional (95% vs. 82%, p = 0.004), asymptomatic (44% vs. 28%, p = 0.009), and located in the pancreatic body/tail (81% vs. 60%, p < 0.001) than solid PNETs. Although cystic and solid PNETs had similar sizes and pathologic stage at the time of resection, Ki-67 proliferation index (Ki-67 ≤ 9%: 98% vs. 85%; p = 0.007), and histologic grade (grade I: 84% vs. 59%; p = 0.009) had less aggressive features in cystic PNETs. CONCLUSION In addition to reporting a higher than previously published incidence of cystic PNET (27%), this study found significant differences in multiple clinicopathologic variables between cystic and solid PNETs. Cystic PNET may be a distinct and possibly less aggressive subtype of PNET yet have similar pathologic stage, recurrence, and survival to solid PNETs. Cystic PNETs require further attention to better understand the true natural history.
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Affiliation(s)
- Rosalie A Carr
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Panagiotis Bletsis
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Alexandra M Roch
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Michael G House
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Nicholas J Zyromski
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Attila Nakeeb
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - C Max Schmidt
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Eugene P Ceppa
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA.
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20
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Pancreatic Cystic Lesions: Pathogenesis and Malignant Potential. Diseases 2018; 6:diseases6020050. [PMID: 29899320 PMCID: PMC6023528 DOI: 10.3390/diseases6020050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/06/2018] [Accepted: 06/07/2018] [Indexed: 01/17/2023] Open
Abstract
Pancreatic cancer remains one of the most lethal cancers despite extensive research. Further understanding of precursor lesions may enhance the ability to treat and prevent pancreatic cancer. Pancreatic cystic lesions (PCLs) with malignant potential include: mucinous PCLs (intraductal papillary mucinous neoplasms and mucinous cystic neoplasm), solid pseudopapillary tumors and cystic neuroendocrine tumors. This review summarizes the latest literature describing what is known about the pathogenesis and malignant potential of these PCLs, including unique epidemiological, radiological, histological, genetic and molecular characteristics.
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21
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Zilli A, Arcidiacono PG, Conte D, Massironi S. Clinical impact of endoscopic ultrasonography on the management of neuroendocrine tumors: lights and shadows. Dig Liver Dis 2018; 50:6-14. [PMID: 29102525 DOI: 10.1016/j.dld.2017.10.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/04/2017] [Accepted: 10/09/2017] [Indexed: 02/07/2023]
Abstract
The incidence of gastroenteropancreatic neuroendocrine neoplasms has increased in the recent decades. An extensive bibliographical search was performed in PubMed to identify guidelines and primary literature (retrospective and prospective studies, systematic reviews, case series) published mostly between year 1997 and June 2017, using both medical subject heading (MeSH) terms and free-language keywords about the accuracy and diagnostic and therapeutic role of endoscopic ultrasound in the context of gastro-entero-pancreatic neuroendocrine neoplasms. Endoscopic ultrasound is the modality of choice for diagnosing pancreatic neuroendocrine neoplasms and for the locoregional staging of gastric, duodenal, pancreatic and rectal neuroendocrine neoplasms; in particular, in the setting of pancreatic neuroendocrine neoplasms it has demonstrated higher accuracy in tumor detection than other imaging modalities. Furthermore, the possibility of tattooing pancreatic lesions by endoscopic ultrasound fine needle aspiration may help surgeons to locate the tumor and avoid any demolition surgery. Finally, endoscopic ultrasound-guided therapies have been proposed and used in several studies for patients unsuitable for surgery, with good results on the control of symptoms and the reduction of tumor burden.
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Affiliation(s)
- Alessandra Zilli
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy; Postgraduate School of Gastroenterology, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Paolo Giorgio Arcidiacono
- PancreatoBiliary Endoscopy and Endosonography Division, Pancreas Translatiinal and Clinical Research Center, San Raffaele Scientific Institute, Vita Salute San Raffaele University, Milan, Italy
| | - Dario Conte
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Sara Massironi
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy.
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22
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Cloyd JM, Kopecky KE, Norton JA, Kunz PL, Fisher GA, Visser BC, Dua MM, Park WG, Poultsides GA. Neuroendocrine tumors of the pancreas: Degree of cystic component predicts prognosis. Surgery 2016; 160:708-13. [PMID: 27216830 DOI: 10.1016/j.surg.2016.04.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 03/18/2016] [Accepted: 04/01/2016] [Indexed: 12/25/2022]
Abstract
BACKGROUND Although most pancreatic neuroendocrine tumors are solid, approximately 10% are cystic. Some studies have suggested that cystic pancreatic neuroendocrine tumors are associated with a more favorable prognosis. METHODS A retrospective review of all patients with pancreatic neuroendocrine tumors who underwent operative resection between 1999 and 2014 at a single academic medical center was performed. Based on cross-sectional imaging performed before operation, pancreatic neuroendocrine tumors were classified according to the size of the cystic component relative to the total tumor size: purely cystic (100%), mostly cystic (≥50%), mostly solid (<50%), and purely solid (0%). Clinicopathologic characteristics and recurrence-free survival were assessed between groups. RESULTS In the study, 214 patients met inclusion criteria: 8 with purely cystic tumors, 7 with mostly cystic tumors, 15 with mostly solid tumors, and 184 with purely solid tumors. The groups differed in terms of tumor size (1.5 ± 0.5, 3.0 ± 1.7, 3.7 ± 2.6, and 4.0 ± 3.5 cm), lymph node positivity (0%, 0%, 26.7%, and 34.2%), intermediate or high grade (0%, 16.7%, 20.0%, and 31.0%), synchronous liver metastases (0%, 14.3%, 20.0%, and 26.6%) and need for pancreaticoduodenectomy (0%, 0%, 6.7%, and 25.0%), respectively. No cases of purely cystic pancreatic neuroendocrine tumors were associated with synchronous liver or lymph node metastasis, intermediate/high grade, recurrence, or death due to disease. Among patients presenting without metastatic disease, 10-year recurrence-free survival was 100% in patients with purely and mostly cystic tumors versus 53.0% in patients with purely and mostly solid tumors; however, this difference did not reach statistical significance. CONCLUSION Pancreatic neuroendocrine tumors demonstrate a spectrum of biologic behavior with an increasing cystic component being associated with more favorable clinicopathologic features and prognosis. Purely cystic pancreatic neuroendocrine tumors may represent 1 subset that can be safely observed without immediate resection.
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Affiliation(s)
| | | | | | | | | | | | | | - Walter G Park
- Department of Medicine and Gastroenterology, Stanford University, CA
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23
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Martin AK, Zhou Z. Endoscopic ultrasound-guided fine-needle aspiration for the diagnosis of pancreatic cysts by combined cytopathology and cystic content analysis. World J Gastrointest Endosc 2015; 7:1157-1169. [PMID: 26504505 PMCID: PMC4613805 DOI: 10.4253/wjge.v7.i15.1157] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 08/03/2015] [Accepted: 09/08/2015] [Indexed: 02/05/2023] Open
Abstract
Recent advances in imaging technology have resulted in an increase in incidental discoveries of pancreatic cystic lesions. Pancreatic cysts comprise a wide variety of lesions and include non-neoplastic cysts and neoplastic cysts. Because some pancreatic cysts have more of a malignant potential than others, it is absolutely essential that an accurate diagnosis is rendered so that effective care can be given to each patient. In many centers, endoscopic ultrasound (EUS)-guided fine-needle aspiration (FNA) has emerged as the modality of choice that enables one to distinguish between mucinous and non-mucinous lesion, diagnose malignancy and collect cyst fluid for further diagnostic studies, such as pancreatic enzyme levels, molecular analysis and other tumor biomarkers. The current review will focus on EUS-guided FNA and the cytological diagnosis for pancreatic cysts.
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