Objective: To improve the diagnosis and treatment of non-ductal pancreatic adenocarcinoma-occupying lesions.
Methods: A retrospective analysis was made for 114 cases of pancreatic non-ductal adenocarcinoma-occupying pathologically confirmed lesions.
Results: (1) There were 36 males (31.6%) and 78 females (68.42%); (2) presenting symptoms and signs were abdominal pain (n = 56, 49.1%), back pain (n = 24, 21.1%), weight loss (n = 18, 15.8%) and obstructive jaundice (n = 8, 0.07%); (3) the positive rates of CA19-9, CA242 and CEA were 21.1%, 19.7% and 5.6% respectively; (4) pancreaticoduodenectomy was performed in 26 patients, distal pancreatectomy in 53, tumor enucleation in 15, segmental pancreatectomy in 9, partial resection in 3, duodenum-preserving pancreatic head resection in 1 and palliative surgery (either cholecystojejunostomy anastomosis or gastrojejunostomy) in 7; (5) pathologic analysis revealed 35 solid pseudopapillary neoplasm of pancreas, 28 pancreatic endocrine tumors, 18 focal chronic pancreatitis, 11 serous cystic neoplasms, 9 mucinous cystic neoplasms, 4 pancreatic cysts, 3 acinar cell carcinomas, 2 pancreatic cavernous hemangiomas, 1 sarcoma of pancreas, 1 sarcomatoid carcinoma of pancreas, 1 pancreatic schwannoma and 1 pancreatic neuroblastoma.
Conclusion: The non-ductal pancreatic adenocarcinoma-occupying lesions have no specific clinical presentation or serum tumor marker. An understanding of the natural history of these lesions is important for optimal management.
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Cancer Med
December 2024
Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy.
J Cancer Res Clin Oncol
July 2024
Department of General, Visceral and Vascular Surgery, University Hospital Jena, Am Klinikum 1, 07740, Jena, Germany.
Purpose: The biology of rare pancreatic tumours, which differs from that of ductal pancreatic cancer, requires increased attention. Although the majority of rare pancreatic tumours are benign, it is difficult to decide whether an invasive component exists without complete removal of the lesion, despite considerable progress in diagnosis. We are investigating a large cohort of patients with histologically confirmed epithelial non-ductal non-neuroendocrine neoplasms of the pancreas.
View Article and Find Full Text PDFJ Pathol Transl Med
July 2024
Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
Background: Acinar cell carcinoma (ACC) is a rare malignant epithelial neoplasm, which shares many cytomorphological features with other non-ductal pancreatic neoplasms such as pancreatic neuroendocrine neoplasm (PanNEN) and solid-pseudopapillary neoplasm (SPN). Due to the relative rarity of these tumors, pathologists are less familiar with the cytological features, especially on liquid-based cytology (LBC) which has been relatively recently introduced for endoscopic ultrasound-guided fine needle aspiration specimens.
Methods: We evaluated the detailed cytological features of 15 histologically confirmed ACC (7 conventional smears [CS], 8 LBC), and compared them with the LBC features of SPN (n = 9) and PanNEN (n = 9).
Clin Gastroenterol Hepatol
June 2024
Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands; Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands. Electronic address:
Background & Aims: Cytologic and histopathologic diagnosis of non-ductal pancreatic neoplasms can be challenging in daily clinical practice, whereas it is crucial for therapy and prognosis. The cancer methylome is successfully used as a diagnostic tool in other cancer entities. Here, we investigate if methylation profiling can improve the diagnostic work-up of pancreatic neoplasms.
View Article and Find Full Text PDFFront Oncol
February 2022
Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Purpose: The purpose of this study is to reveal the clinicopathological features and identify risk factors of prognosis among patients with pancreatic cancer bone metastasis (PCBM).
Patients And Methods: Patients with PCBM were retrieved from the Surveillance, Epidemiology, and End Results (SEER) database between 2010 and 2016. Independent predictors for survival of those patients were determined by the univariate and multivariate Cox regression analysis.
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