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Paolino G, Basturk O, Esposito I, Hong SM, Brosens LA, Tarcan Z, Wood LD, Gkountakos A, Omori Y, Mattiolo P, Ciulla C, Marchegiani G, Pea A, Bevere M, De Robertis R, D'Onofrio M, Salvia R, Cheng L, Furukawa T, Scarpa A, Adsay V, Luchini C. Comprehensive Characterization of Intraductal Oncocytic Papillary Neoplasm of the Pancreas: A Systematic and Critical Review. Mod Pathol 2024; 37:100554. [PMID: 38950698 DOI: 10.1016/j.modpat.2024.100554] [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: 02/08/2024] [Revised: 05/23/2024] [Accepted: 06/20/2024] [Indexed: 07/03/2024]
Abstract
Intraductal oncocytic papillary neoplasm (IOPN) of the pancreas is a recently recognized pancreatic tumor. Here, we aimed to determine its most essential features with the systematic review tool. PubMed, Scopus, and Embase were searched for studies reporting data on pancreatic IOPN. The clinicopathologic, immunohistochemical, and molecular data were extracted and summarized. Then, a comparative analysis of the molecular alterations of IOPN with those of pancreatic ductal adenocarcinoma and intraductal papillary mucinous neoplasm from reference cohorts (including The Cancer Genome Atlas) was conducted. The key findings from 414 IOPNs were as follows: 1) The male-to-female ratio was 1.5:1. Pancreatic head was the most common site (131/237; 55.3%), but a diffuse tumor extension involving more than one pancreatic segment was described in about 1 out of 5 cases (49/237; 20.6%). The mean size was 45.5 mm. An associated invasive carcinoma was present in 50% of cases (168/336). In those cases, most tumors were pT1 or pT2 and pN0 (>80%), and vascular invasion was uncommon (20.6%). Regarding survival, more than 90% of patients were alive after surgical resection. 2) Immunohistochemical and molecular features were as follows. The most commonly expressed mucins were MUC5AC (110/112; 98.2%) and MUC6 (78/84; 92.8%). Compared with pancreatic ductal adenocarcinoma and intraductal papillary mucinous neoplasm, the classic pancreatic drivers KRAS, TP53, CDKN2A, SMAD4, and GNAS were less altered in IOPN (P < .01). Moreover, fusions involving PRKACA or PRKACB gene were detected in all of the 68 cases examined, with PRKACB::ATP1B1 being the most common (27/68 cases; 39.7%). These genomic events emerged as an entity-defining molecular alteration of IOPN (P < .01). Thus, such fusions represent a promising biomarker for diagnostic purposes. Recent evidence also suggests their role in influencing the acquisition of oncocytic morphology. IOPN is a distinct pancreatic neoplasm with specific clinicopathologic and molecular features. Considering the clinical or prognostic implications, its recognition is essential for pathologists and, ultimately, patients' management.
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Affiliation(s)
- Gaetano Paolino
- Section of Pathology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy; Pathology Unit, Azienda Socio Sanitaria Territoriale Spedali Civili Di Brescia, Brescia, Italy
| | - Olca Basturk
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Irene Esposito
- Institute of Pathology, University Hospital of Duesseldorf, Duesseldorf, Germany
| | - Seung-Mo Hong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Lodewijk A Brosens
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Zeynep Tarcan
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Laura D Wood
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Anastasios Gkountakos
- Section of Pathology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Yuko Omori
- Section of Pathology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy; Department of Investigative Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Paola Mattiolo
- Section of Pathology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Calogero Ciulla
- Section of Pathology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Giovanni Marchegiani
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padua, Padua, Italy
| | - Antonio Pea
- Department of Surgery, The Pancreas Institute, University and Hospital Trust of Verona, Verona, Italy
| | - Michele Bevere
- ARC-Net Research Center, University of Verona, Verona, Italy
| | - Riccardo De Robertis
- Section of Radiology, Department of Diagnostics and Public Health, University and Hospital Trust of Verona, Verona, Italy
| | - Mirko D'Onofrio
- Section of Radiology, Department of Diagnostics and Public Health, University and Hospital Trust of Verona, Verona, Italy
| | - Roberto Salvia
- Department of Surgery, The Pancreas Institute, University and Hospital Trust of Verona, Verona, Italy
| | - Liang Cheng
- Department of Pathology and Laboratory Medicine, The Warren Albert Medical School of Brown University, Lifespan Academic Medical Center, and the Legorreta Cancer Center at Brown University, Providence, Rhode Island
| | - Toru Furukawa
- Department of Investigative Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Aldo Scarpa
- Section of Pathology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy; ARC-Net Research Center, University of Verona, Verona, Italy
| | - Volkan Adsay
- Department of Pathology, Koç University Hospital and Koç University Research Center for Translational Medicine, Istanbul, Turkey
| | - Claudio Luchini
- Section of Pathology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy; ARC-Net Research Center, University of Verona, Verona, Italy.
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Tarcan ZC, Esmer R, Akar KE, Bagci P, Bozkurtlar E, Saka B, Armutlu A, Sahin Ozkan H, Ozcan K, Taskin OC, Kapran Y, Aydin Mericoz C, Balci S, Yilmaz S, Cengiz D, Gurses B, Alper E, Tellioglu G, Bozkurt E, Bilge O, Cheng JD, Basturk O, Adsay NV. Intra-ampullary Papillary Tubular Neoplasm (IAPN): Clinicopathologic Analysis of 72 Cases Highlights the Distinctive Characteristics of a Poorly Recognized Entity. Am J Surg Pathol 2024; 48:1093-1107. [PMID: 38938087 DOI: 10.1097/pas.0000000000002275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
The guidelines recently recognized the intra-ampullary papillary tubular neoplasm (IAPN) as a distinct tumor entity. However, the data on IAPN and its distinction from other ampullary tumors remain limited. A detailed clinicopathologic analysis of 72 previously unpublished IAPNs was performed. The patients were: male/female=1.8; mean age=67 years (range: 42 to 86 y); mean size=2.3 cm. Gross-microscopic correlation was crucial. From the duodenal perspective, the ampulla was typically raised symmetrically, with a patulous orifice, and was otherwise covered by stretched normal duodenal mucosa. However, in 6 cases, the protrusion of the intra-ampullary tumor to the duodenal surface gave the impression of an "ampullary-duodenal tumor," with the accurate diagnosis of IAPN established only by microscopic correlation illustrating the abrupt ending of the lesion at the edge of the ampulla. Microscopically, the preinvasive component often revealed mixed phenotypes (44.4% predominantly nonintestinal). The invasion was common (94%), typically small (mean=1.2 cm), primarily pancreatobiliary-type (75%), and showed aggressive features (lymphovascular invasion in 66%, perineural invasion in 41%, high budding in 30%). In 6 cases, the preinvasive component was pure intestinal, but the invasive component was pancreatobiliary. LN metastasis was identified in 42% (32% in those with ≤1 cm invasion). The prognosis was significantly better than ampullary-ductal carcinomas (median: 69 vs. 41 months; 3-year: 68% vs. 55%; and 5-year: 51% vs. 35%, P =0.047). In conclusion, unlike ampullary-duodenal carcinomas, IAPNs are often (44.4%) predominantly nonintestinal and commonly (94%) invasive, displaying aggressive features and LN metastasis even when minimally invasive, all of which render them less amenable to ampullectomy. However, their prognosis is still better than that of the "ampullary-ductal" carcinomas, with which IAPNs are currently grouped in CAP protocols (while IAPNs are kindreds of intraductal tumors of the pancreatobiliary tract, the latter represents the ampullary counterpart of pancreatic adenocarcinoma/cholangiocarcinoma).
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Affiliation(s)
- Zeynep C Tarcan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | | | | | | | | | | | | | | | - Kerem Ozcan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | | | | | | | - Serdar Balci
- Department of Pathology, Memorial Hospitals Group
| | | | | | | | | | | | | | - Orhan Bilge
- Department of Surgery, American Hospital, Istanbul, Turkey
| | | | - Olca Basturk
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
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Nakanuma Y, Kakuda Y, Canh HN, Sasaki M, Harada K, Sugino T. Pathologic characterization of precursors and cholangiocarcinoma referring to peribiliary capillary plexus: a new pathologic approach to bile duct neoplasm. Virchows Arch 2024; 485:257-268. [PMID: 39008118 DOI: 10.1007/s00428-024-03859-9] [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: 03/10/2024] [Revised: 06/12/2024] [Accepted: 06/26/2024] [Indexed: 07/16/2024]
Abstract
The peribiliary capillary plexus (PCP) regularly and densely lines the basal side of the lining epithelia of normal bile ducts. To determine the pathology of the PCP in high-grade biliary intraepithelial neoplasms (BilINs) and intraductal papillary neoplasms of the bile duct (IPNBs), a precursor of cholangiocarcinoma (CCA), and CCA. Seventy-six cases of surgically resected high-grade BilIN and 83 cases of IPNB were histopathologically examined using endothelial immunostaining of PCP; all cases of high-grade BilIN and 40 cases of IPNB were associated with invasive CCA. Invasive and preinvasive neoplasms were pathologically examined referring to a two-layer pattern composed of biliary lining epithelia and underlying PCP unique to the bile duct. All high-grade BilIIN cases had an underlying single layer of capillaries, similar to PCP (PCP-like capillaries). In 43% of the 83 cases of IPNB, these capillaries were regularly distributed in almost all stalks and intervening stroma of intraluminal neoplastic components, while in the remaining 57% of IPNB, capillaries were sparsely or irregularly distributed in intraluminal components showing cribriform or solid growth patterns composed of striking atypical neoplastic epithelia. Invasive carcinomas associated with high-grade BilIN and IPNB were not lined with capillaries. The loss of PCP-like capillaries underlying high-grade BilIN and in stalks or stroma of IPNB may be involved in the malignant progression of these precursors. Immunostaining of PCP could be a new pathological tool for the evaluation of malignant progression and vascular supply in CCA and its precursors.
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Affiliation(s)
- Yasuni Nakanuma
- Division of Pathology, Shizuoka Cancer Center, Shizuoka, Japan.
- Department of Diagnostic Pathology, Fukui Prefecture Saiseikai Hospital, Wadanakacho Funahashi 7-1, Fukui, 918-8503, Japan.
| | - Yuko Kakuda
- Division of Pathology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hiep Nguyen Canh
- Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Motoko Sasaki
- Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Kenichi Harada
- Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Takashi Sugino
- Division of Pathology, Shizuoka Cancer Center, Shizuoka, Japan
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Pehlivanoglu B, Araya JC, Lawrence S, Roa JC, Balci S, Andersen JB, Rashid A, Hsing AW, Zhu B, Gao YT, Koshiol J, Adsay V. TPPP-BRD9 fusion-related gallbladder carcinomas are frequently associated with intracholecystic neoplasia, neuroendocrine carcinoma, and a distinctive small tubular-type adenocarcinoma commonly accompanied with a syringomatous pattern. Hum Pathol 2024; 150:67-73. [PMID: 38972607 DOI: 10.1016/j.humpath.2024.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/29/2024] [Accepted: 07/03/2024] [Indexed: 07/09/2024]
Abstract
A fusion between tubulin polymerization-promoting protein (TPPP), a regulatory cytoskeletal gene, and the chromatin remodeling factor, bromodomain-containing protein 9 (BRD9), TPPP-BRD9 fusion has been found in rare cancer cases, including lung and gallbladder cancers (GBC). In this study, we investigated the histopathological features of 16 GBCs previously shown by RNA sequencing to harbor the TPPP-BRD9 fusion. Findings in the fusion-positive GBCs were compared with 645 GBC cases from the authors' database. Among the 16 TPPP-BRD9 fusion-positive GBC cases, most were females (F:M = 7:1) of Chinese ethnicity (12/16), whereas the remaining cases were from Chile. The histopathological examination showed the following findings: 1) Intracholecystic neoplasm (ICN) in 7/15 (47% vs. 7% 645 reference GBCs, p < 0.001), all with gastro-pancreatobiliary phenotype, often with clear cell change, and in the background of pyloric gland metaplasia and extensive high-grade dysplasia. 2) Neuroendocrine carcinoma (NEC) morphology: 3 cases (27% vs. 4.6% in the reference database, p = 0.001) showed a sheet-like and nested/trabecular growth pattern of monotonous cells with salt-and-pepper chromatin characteristic of NECs. Two were large cell type, one had prominent clear cell features, a rare finding in GBNECs; the other one had relatively bland, well-differentiated morphology, and the remaining case was small cell type. 3) Adenocarcinoma identified in 8 cases had a distinctive pattern characterized by widely separated small, round tubular units with relatively uniform nuclei in a fashion seen in mesonephric adenocarcinomas, including hobnail-like arrangement and apical snouts, reminiscent of tubular carcinomas of the breast in many areas. In some foci, the epithelium was attenuated, and glands were elongated, some with comma shapes, which along with the mucinous/necrotic intraluminal debris created a "syringoid" appearance. 4) Other occasional patterns included the cribriform, glomeruloid patterns, and metaplastic tubular-spindle cell pattern accompanied by hemorrhage. In conclusion, TPPP-BRD9 fusion-positive GBCs often develop through intracholecystic neoplasms (adenoma-carcinoma sequence) of gastro-pancreatobiliary lineage, appear more prone to form NEC morphology and have a propensity to display clear cell change. Invasive adenocarcinomas arising in this setting often seem to display a distinctive appearance that we tentatively propose as the TPPP-BRD9 fusion-positive pattern of GBC.
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Affiliation(s)
- Burcin Pehlivanoglu
- Department of Pathology, Dokuz Eylul University, Faculty of Medicine, Izmir, Turkey
| | - Juan Carlos Araya
- Department of Pathology, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Scott Lawrence
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Juan Carlos Roa
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Serdar Balci
- Department of Pathology, Memorial Hospital, Istanbul, Turkey
| | - Jesper B Andersen
- Biotech Research and Innovation Center, Department of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Asif Rashid
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ann W Hsing
- Stanford Cancer Institute and Stanford Prevention Research Center, Department of Medicine, Stanford School of Medicine, Stanford, CA, USA
| | - Bin Zhu
- Division of Cancer Epidemiology and Genetics, Biostatistics Branch, NIH, USA
| | - Yu-Tang Gao
- Department of Epidemiology, Shanghai Cancer Institute, Shanghai, China
| | - Jill Koshiol
- Division of Cancer Epidemiology and Genetics, NIH, USA
| | - Volkan Adsay
- Department of Pathology, Koç University Hospital, Istanbul, Turkey; Koç University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey.
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Nakanuma Y, Sato Y, Kakuda Y, Naito Y, Fukumura Y, Fukushima M, Minato H, Aishima S, Ohike N, Furukawa T. Interobserver agreement of pathologic classification and grading of tumoral intraductal pre-invasive neoplasms of the bile duct. Ann Diagn Pathol 2024; 69:152247. [PMID: 38128439 DOI: 10.1016/j.anndiagpath.2023.152247] [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: 12/10/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Current WHO terminology and recent publications have classified tumoral (grossly visible) intraductal pre-invasive neoplasms of bile duct (TIDN) into three categories: intraductal papillary neoplasm of bile duct (IPNB), intraductal papillary oncocytic neoplasm (IOPN), and intraductal tubulopapillary neoplasm (ITPN). A total of 227 cases of TIDN and related lesions ≥3 mm in height were examined by 10 biliary pathologists referring to these 3 categories and two pathologic gradings: two-tiered system (low- and high-grade dysplasia) and modified types 1 and 2 subclassification. Among them, IPNB was the most frequent (183 cases), followed by IOPN (28 cases), while ITPN was rare (2 cases), and interobserver agreement in this classification was "substantial" (κ-value, 0.657). The interobserver agreement of two-tiered grading system of TIDN was "slight" (κ-value, 0.201), while that of modified types 1 and 2 subclassification was "moderate" (κ-value, 0.515), and 42 % were of type 1, and 58 % were of type 2. Type 1 TIDN showed occasional stromal invasion (6.7 %), whereas type 2 TIDN was frequently associated with stromal invasion (49.6 %) (p < 0.01). In conclusion, the classification of TIDN into three categories and modified types 1 and 2 subclassification are a practically applicable classification and grading system for TIDN.
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Affiliation(s)
- Yasuni Nakanuma
- Division of Pathology, Shizuoka Cancer Center, Shizuoka, Japan; Department of Diagnostic Pathology, Fukui Prefecture Saiseikai Hospital, Fukui, Japan.
| | - Yasunori Sato
- Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Yuko Kakuda
- Division of Pathology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Yoshiki Naito
- Department of Diagnostic Pathology, Kurume University School of Medicine, Kurume, Japan
| | - Yuki Fukumura
- Department of Diagnostic Pathology, Juntendo University School of Medicine, Tokyo, Japan
| | - Mana Fukushima
- Department of Tumor Pathology, Faculty of Medical Sciences, Fukui University, Fukui, Japan
| | - Hiroshi Minato
- Department of Diagnostic Pathology, Ishikawa Prefectural Hospital, Kanazawa, Japan
| | - Shinichi Aishima
- Department of Structural Pathology, Kyushu University Graduate School of Medicine, Fukuoka, Japan
| | - Nobuyuki Ohike
- Department of Pathology, Division of Molecular Pathology, St. Marianna University Graduate School of Medicine, Japan
| | - Toru Furukawa
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Adsay NV, Basturk O. Dysplasia and Early Carcinoma of the Gallbladder and Bile Ducts: Terminology, Classification, and Significance. Gastroenterol Clin North Am 2024; 53:85-108. [PMID: 38280752 DOI: 10.1016/j.gtc.2023.10.001] [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] [Indexed: 01/29/2024]
Abstract
Most precursor lesions and early cancerous changes in the gallbladder and bile ducts present as clinically/grossly inapparent lesions. Low-grade dysplasia is difficult to define and clinically inconsequential by itself; however, extra sampling is required to exclude accompanying significant lesions. For high-grade dysplasia ('carcinoma in situ'), a complete sampling is necessary to rule out invasion. Tumoral intramucosal neoplasms (ie, intracholecystic and intraductal neoplasia) form radiologically/grossly visible masses, and they account for (present in the background of) about 5% to 10% of invasive cancers of the region. These reveal a spectrum of papilla/tubule formation, cell lineages, and dysplastic transformation. Some subtypes such as intracholecystic tubular non-mucinous neoplasm of the gallbladder (almost never invasive) and intraductal oncocytic or intraductal tubulopapillary neoplasms of the bile ducts (may have a protracted clinical course even when invasive) are to be noted separately. Other types of intracholecystic/intraductal neoplasia have a high frequency of invasive carcinoma and progressive behavior, which often culminates in mortality.
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Affiliation(s)
- N Volkan Adsay
- Department of Pathology, Koc University School of Medicine, Koç Üniversitesi Hastanesi, Davutpaşa Cd. No:4, Zeytinburnu, İstanbul 34010, Turkey.
| | - Olca Basturk
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
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Basturk O, Adsay NV. Early Cancerous Lesions of the Pancreas and Ampulla: Current Concepts and Challenges. Gastroenterol Clin North Am 2024; 53:57-84. [PMID: 38280751 PMCID: PMC10823180 DOI: 10.1016/j.gtc.2023.11.004] [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] [Indexed: 01/29/2024]
Abstract
Owing to the increased use of advanced imaging techniques, mass-forming (cystic/intraductal) preinvasive neoplasms are being detected much more frequently and they have rapidly become one of the main focuses of interests in medical field. These neoplasms have very distinctive clinical and radiographic findings, exhibit a spectrum of dysplastic transformation, from low-grade dysplasia to high-grade dysplasia, and may be associated with an invasive carcinoma. Accounting for about 5% to 10% of pancreatic ductal adenocarcinomas, they provide a curable target subset in an otherwise biologically dismal pancreas cancer category.
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Affiliation(s)
- Olca Basturk
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
| | - N Volkan Adsay
- Department of Pathology, Koc University School of Medicine, Davutpaşa Cd. No:4, Zeytinburnu, Istanbul 34010, Turkey.
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Manzano-Núñez F, Prates Tiago Aguilar L, Sempoux C, Lemaigre FP. Biliary Tract Cancer: Molecular Biology of Precursor Lesions. Semin Liver Dis 2023; 43:472-484. [PMID: 37944999 DOI: 10.1055/a-2207-9834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Biliary tract cancer is a devastating malignancy of the bile ducts and gallbladder with a dismal prognosis. The study of precancerous lesions has received considerable attention and led to a histopathological classification which, in some respects, remains an evolving field. Consequently, increasing efforts have been devoted to characterizing the molecular pathogenesis of the precursor lesions, with the aim of better understanding the mechanisms of tumor progression, and with the ultimate goal of meeting the challenges of early diagnosis and treatment. This review delves into the molecular mechanisms that initiate and promote the development of precursor lesions of intra- and extrahepatic cholangiocarcinoma and of gallbladder carcinoma. It addresses the genomic, epigenomic, and transcriptomic landscape of these precursors and provides an overview of animal and organoid models used to study them. In conclusion, this review summarizes the known molecular features of precancerous lesions in biliary tract cancer and highlights our fragmentary knowledge of the molecular pathogenesis of tumor initiation.
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Affiliation(s)
| | | | - Christine Sempoux
- Institute of Pathology, Lausanne University Hospital CHUV, University of Lausanne, Lausanne, Switzerland
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Xue Y, Basturk O. Intraductal neoplasms of the pancreatobiliary tract: navigating the alphabet. Histopathology 2023; 83:499-508. [PMID: 37455382 DOI: 10.1111/his.15003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/02/2023] [Accepted: 06/19/2023] [Indexed: 07/18/2023]
Abstract
Cancers of the pancreatobiliary tract are diseases with unfavourable prognoses. In the last couple of decades, two types of lesions have been described as precursors that precede pancreatobiliary cancers. These include incidental microscopic (flat) lesions known as pancreatic intra-epithelial neoplasia and biliary intra-epithelial neoplasia, and grossly visible, mass-forming lesions (tumoral intra-epithelial neoplasia) including intraductal papillary mucinous neoplasms, intraductal oncocytic papillary neoplasms, intraductal tubulopapillary neoplasms, intraductal papillary neoplasms of the bile duct and intracholecystic papillary neoplasms. Early detection and adequate treatment of these precursor lesions, especially the second group, have the potential to prevent pancreatobiliary cancer or at least improve its prognosis. In this review, we discuss their histopathology and recent updates on molecular profiling of these intraductal neoplasms of the pancreatobiliary tract.
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Affiliation(s)
- Yue Xue
- Department of Pathology and Laboratory Medicine, Northwestern University, Chicago, IL, USA
| | - Olca Basturk
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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