Update on Pancreatic Endocrine Tumors

2006 ◽  
Vol 130 (7) ◽  
pp. 963-966 ◽  
Author(s):  
Wendy L. Frankel

Abstract Endocrine tumors of the pancreas represent 1% to 2% of all pancreatic neoplasms. The tumors tend to have an indolent behavior, and long-term survival is common. There is no gender or age predilection. Patients can present with symptoms due to hormonal excess or a local mass effect or be asymptomatic. The tumors tend to be solid and well circumscribed. Typical microscopic findings include an organoid pattern of growth, with cells containing scant to moderate amounts of cytoplasm, and nuclei with dispersed chromatin and inconspicuous nucleoli. The morphologic spectrum of these tumors can be variable, and the differential diagnosis includes chronic pancreatitis with neuroendocrine hyperplasia, ductal adenocarcinoma, solid pseudopapillary tumor, acinar cell carcinoma, and pancreatoblastoma. The classification of these tumors remains controversial, and prognosis is difficult to predict, but important features include metastasis and invasion of adjacent structures. Resection remains the mainstay of surgical treatment. It is important to be aware that unusual morphologic variants of pancreatic endocrine tumors are common, and immunohistochemical stains can help avoid misdiagnosis.

ISRN Surgery ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Riccardo Casadei ◽  
Claudio Ricci ◽  
Paola Tomassetti ◽  
Davide Campana ◽  
Francesco Minni

Aim. To identify factors related to survival in patients affected by well-differentiated PETs (benign, uncertain behavior, and carcinoma) who underwent R0 pancreatic resection. Methods. Retrospective study of 74 consecutive patients followed up from January 1980 to December 2011. Prognostic factors were sex, age, type of tumor, presence of symptoms, type of surgical procedure, size of tumor, lymph nodes status, WHO classification, and TNM stage. Overall survival was evaluated using the Kaplan-Meier method. Cox regression analyses were used to identify the factors associated with prognosis in univariate and multivariate analysis. Results. The mean follow-up of all the patients was months. The 5–10-year long-term survival was 90.9% and 79.1%, respectively. At univariate analysis, patient age <55 years was significantly related to a better long-term survival compared to patients age ≥55 years ( months versus months; ). Multivariate analysis showed that female gender (), patients without comorbidities (), and patients affected by well-differentiated benign pancreatic endocrine tumors ( and in relation to tumors with uncertain behavior and carcinomas, resp.) were factors significantly related to a better long-term survival. Conclusions. Patients factors were strongly related to a better long-term survival in patients observed. WHO classification is a very useful prognostic tool for well-differentiated PETs.


2006 ◽  
Vol 244 (6) ◽  
pp. 845-853 ◽  
Author(s):  
Volker Fendrich ◽  
Peter Langer ◽  
Ilhan Celik ◽  
Detlef K. Bartsch ◽  
Andreas Zielke ◽  
...  

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Claudio F. Feo ◽  
Giulia Deiana ◽  
Chiara Ninniri ◽  
Giuseppe Cherchi ◽  
Paola Crivelli ◽  
...  

Abstract Background Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy with poor prognosis. Radical surgery is the best option for cure and, nowadays, it is performed by many surgeons also in cases of vascular infiltration. Whether this aggressive approach to a locally advanced PDAC produces a survival benefit is under debate. Most data in the literature come from retrospective comparative studies; therefore, it is still unclear if such an extensive surgery for an advanced cancer is justified. Methods A retrospective review of patients with PDAC treated at our institution over a 12-year period was performed. Data concerning patients’ characteristics, operative details, postoperative course, and long-term survival were retrieved from prospective databases and analysed. Factors associated with poor survival were assessed via Cox regression analysis. Results A total of 173 patients with PDAC were included in the analysis, 41 subjects underwent pancreatectomy with vascular resection for locally advanced disease, and in 132 patients, only a pancreatic resection was undertaken. Demographics, major comorbidities, and tumour characteristics were similar between the two groups. Length of surgery (P=0.0006), intraoperative blood transfusions (P<0.0001), and overall complications (P<0.0001) were significantly higher in the vascular resection group. Length of hospital stay (P=0.684) and 90-day mortality (P=0.575) were comparable between groups. Overall median survival (P= 0.717) and survival rates at 1, 3, and 5 years (P=0.964, P=0.500, and P=0.445, respectively) did not differ significantly between groups. Age ≥70 years and postoperative complications were independent predictors of lower survival. Conclusions Our study confirms that pancreatectomy with vascular resection for a locally advanced PDAC is a complex operation associated with a significant longer operating time that may increase morbidity; however, in selected patients, R0 margins can be obtained with an acceptable long-term survival rate. Older patients are less likely to benefit from surgery.


Pancreatic ductal adenocarcinoma (PDAC) most commonly affects the head of the pancreas. This condition has a dismal prognosis. Patients with early disease may be candidates for pancreaticoduodenectomy (PD). This is a high-risk operation which is associated with considerable morbidity. Whilst perioperative mortality rates have fallen in recent times, the risk remains significant and long-term survival is poor, even in those who make an uncomplicated recovery. Furthermore, PD is known to affect quality of life (QoL) negatively. Most studies suggest it takes up to six months before a patient’s QoL returns to baseline. This is a considerable amount of time for a patient who is unlikely to achieve long-term survival. This short review discusses the recent literature surrounding mortality rates, long-term survival and QoL following PD for PDAC. A comprehensive understanding of these topics will allow clinicians and patients to consider the risks and benefits before surgical resection is considered.


2005 ◽  
Vol 12 (4) ◽  
pp. 1083-1092 ◽  
Author(s):  
Francesco Panzuto ◽  
Silvia Nasoni ◽  
Massimo Falconi ◽  
Vito Domenico Corleto ◽  
Gabriele Capurso ◽  
...  

Since gastro-entero-pancreatic endocrine tumors are rare and heterogeneous diseases, their prognosis and long-term survival are not well known. This study aimed at identifying prognostic factors and assessing long-term survival in gastro-entero-pancreatic endocrine tumors. A total of 156 patients enrolled. Prognostic factors were determined by univariate/multivariate analysis; survival rates were assessed by the Kaplan–Meier method. The tumors were non-functioning in 59.6% of patients, and originated from the pancreas in 42.9%. At diagnosis, 64.3% of patients had metastases. The tumors were well differentiated in 89.6% of patients. Ki67 was >2% in 39.6% of patients. Primary tumor size was >3 cm in 49.6% of cases studied. For the univariate analysis, the negative prognostic factors were: pancreatic origin (rate ratio 4.64, P = 0.0002), poorly differentiated tumor (rate ratio 7.70, P = 0.0001), primary tumor size >3 cm (rate ratio 4.26, P = 0.0009), presence of distant metastases (liver: rate ratio 5.88, P = 0.01; distant extra-hepatic: rate ratio 13.41, P = 0.0008). The pancreatic site, the poor degree of differentiation and the distant metastases were confirmed as negative prognostic factors at multivariate analysis. Overall 5-year survival rate was 77.5%. Survival rates differed according to: primary tumor site (62% for pancreatic vs 89.9% for gastrointestinal tract, P = 0.0001) and size (65.7% for >3 cm vs 88.8% for ≤ 3 cm, P = 0.0003), degree of differentiation (22% for poor vs 86.8% for good, P<0.0001), Ki67 (53.5% for > 2% vs 90.1% for ≤ 2%, P = 0.003), metastases (96.1, 77, 73.3 and 50.1% for absent, local, liver and distant extra-hepatic metastases respectively), age at diagnosis (85.3% for ≤ 50 years vs 70.3% for > 50 years, P = 0.03). Although 64.3% of gastro-entero-pancreatic endocrine tumors present metastases at diagnosis, the 5-year survival rate is 77.5%. Pancreatic site, a poor degree of tumor cell differentiation and distant extra-hepatic metastases are the major negative prognostic factors.


2014 ◽  
Vol 146 (5) ◽  
pp. S-1046
Author(s):  
Peter Bronsert ◽  
Ilona Kohler ◽  
Dirk Bausch ◽  
Tobias Keck ◽  
Martin Werner ◽  
...  

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