نتایج جستجو برای: papillary cystadenomas
تعداد نتایج: 22414 فیلتر نتایج به سال:
IMPORTANCE Central pancreatectomy, as an alternative to standard resection for benign and low-grade pancreatic neoplasms, has been described in mainly small retrospective series. OBJECTIVE To describe a large single-center experience with central pancreatectomy. DESIGN, SETTING, AND PARTICIPANTS A retrospective case series in a tertiary referral center included 100 consecutive patients unde...
Pancreatic serous cystadenomas are rare benign cystic neoplasms. Extended operations are unnecessary for serous cystadenomas and minimally invasive surgery should be performed. Laparoscopic pancreatic procedures are under evaluation. We present a case of a 79-year-old Greek woman with symptomatic cholelithiasis and a serous pancreatic cystadenoma located at the neck of the pancreas. In the occa...
background: improvements in imaging techniques has led to an increase in the number of diagnosed pancreatic cysts. although most of the detected cases are benign, a significant percentage of them are malignant or are potentially malignant. currently, endosonography, and analysis of cyst morphology, fine needle aspiration (fna) of the cyst contents, and measurement of the amylase and carcinoembr...
PURPOSE To elucidate the molecular mechanisms contributing to the unique clinicopathologic characteristics of mucinous ovarian carcinoma, global gene expression profiling of mucinous ovarian tumors was carried out. EXPERIMENTAL DESIGN Gene expression profiling was completed for 25 microdissected mucinous tumors [6 cystadenomas, 10 low malignant potential (LMP) tumors, and 9 adenocarcinomas] u...
The majority of pancreatic cysts are detected incidentally when abdominal imaging is performed during unrelated procedures. The aim of the present study was to assess the diagnostic utility and clinical value of carcinoembryonic antigen (CEA), carbohydrate antigen 19-9 (CA 19-9) and amylase analysis in pancreatic cyst fluid. The study included 52 patients with pancreatic cystic lesions, who und...
INTRODUCTION Von Hippel-Lindau disease (VHL) (OMIM193300) is an inherited multisystem cancer syndrome with visceral and central nervous system (CNS) manifestations.9 It is transmitted in an autosomal dominant fashion (chromosome 3p25) with greater than 90% penetrance by age 60 years.12 Visceral lesions consist of renal cell carcinomas and cysts, pancreatic islet cell tumors and cysts, pheochrom...
OBJECTIVES To determine if appendectomy as an adjunctive procedure is necessary in the surgical treatment of benign ovarian mucinous cystadenomas. MATERIAL AND METHODS Retrospective analysis of clinical data: in a research hospital, obstetrics and gynecology depart-ment setting, 63 cases of benign ovarian mucinous cystadenomas confirmed in the pathological evaluation were revised. 59 had the ...
The biology of pancreatic acinar cell cystadenomas has not been clearly defined. However, a non-neoplastic process, caused by a cell differentiation failure leading to a cystic transformation, has been discussed, as well as a benign neoplastic lesion. Pancreatic acinar cell cystadenomas usually consist of thin-walled unilocular or multilocular cysts, and mural nodules have been described in two...
BACKGROUND & AIMS The management of pancreatic cysts poses challenges to both patients and their physicians. We investigated whether a combination of molecular markers and clinical information could improve the classification of pancreatic cysts and management of patients. METHODS We performed a multi-center, retrospective study of 130 patients with resected pancreatic cystic neoplasms (12 se...
BACKGROUND The prevalence and clinical significances of KRAS, GNAS, and RNF43 mutations in patients with pancreatic intraductal papillary mucinous neoplasm (IPMN) remain elusive. To evaluate the incidence of the gene mutations and clinicopathologic differences between KRAS and GNAS mutations in pancreatic cystic lesions, we performed a meta-analysis of published 33 KRAS, 11 GNAS, and 4 RNF43 st...
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