Objective To study the expression of thymidine phosporylase (TP) and the counts of lymph vessels in pancreatic cancer and chronic pancreatitis tissues, and to explore their clinicopathologic significances and correlation in the course of pancreatic cancer. Methods SP immunohistochemical method was used to detetct the expression of TP and the locations of lymph vessels on the routinely paraffin-embedded sections of the specimens from 51 cases pancreatic cancer and 10 cases of chronic pancreatitis. Results The positive rate of TP and the counts of lymph vessels were significantly higher (P＜0.05 and P＜0.01 respectively) in pancreatic cancer 〔54.9%, (12.5±4.3)/HP〕 than those in chronic pancreatitis 〔20.0%，(5.2±2.4)/HP〕. The positive rate of TP and the counts of lymph vessels were significantly lower （P＜0.05, P＜0.01） in well-differentiated adenocarcinoma cases and cases without metastasis compared with poor-differentiated adenocarcinoma cases and cases with metastasis. The counts of lymph vessels were significantly higher in the positive cases of TP than those in the negative ones in pancreatic cancer 〔(13.8±3.4)/HP vs (10.9±3.2)/HP〕, P＜0.01.Conclusion The expression of TP and counts of lymph vessels might be important markers reflecting the progression, biological behaviors, metastatic status and prognosis of pancreatic cancer. TP might promote lympoangiogenesis in pancreatic cancer tissues.
Objective To investigate the etiology, pathogenesis, clinical manifestations, diagnosis and treatment of acute obstructive suppurative pancreatic ductitis (AOSPD). Method The literature reports on AOSPD at home and abroad were reviewed and analyzed comprehensively based on clinical experience. Results AOSPD was a rare clinically infectious disease of purulent pancreatic duct. Chronic pancreatitis and ampullary operations were the main pathogenesis factors. The clinical symptoms were non-specific, and the imaging manifestations were pancreatic duct dilatation and pancreatic duct calculi. The clinical diagnosis was mainly determined by epigastrium CT or endoscopic retrograde cholangiopancreatography, which was easy to be misdiagnosed and missed. Conclusion The clinical diagnosis of AOSPD is difficult, early pancreatic duct drainage is the key to the treatment, and attention should be paid to its diagnosis and treatment.
The surgical treatment of chronic pancreatitis, benign, borderline and low-grade malignant tumors of the pancreatic head is definite in effect. How to preserve more functional organs is the focus of such surgeries. The duodenum, common bile duct and Oddi’s sphincter-preserving pancreatic head total resection (DCOPPHTR) surgical method pioneered by the author team has theoretical advantages compared to other surgical methods. However, due to the difficulty of surgical operation and higher requirements for surgeons, its widespread application is limited. By elaborating on the invention principle and evolution process of this surgery, analyzing the key steps in detail and showing the clinical effects, the author proves that DCOPPHTR is safe and effective and has higher clinical application value.
ObjectiveTo explore the advantages and disadvantages of duodenum-preserving pancreatic head resection (DPPHR) in the clinical application of pancreatic surgical diseases, and to summarize the progress of minimally invasive application of DPPHR combined with the current application of laparoscopy and robot surgery in pancreatic surgery. MethodThe related research literatures about DPPHR at home and abroad in recent years were searched and reviewed. ResultsThe effect of DPPHR compared with traditional pancreaticoduodenectomy (PD) for treatment of benign pancreatic diseases was still controversial, and the postoperative remission effect, perioperative period, occurrence of long-term complications and improvement of quality of life were not very advantageous compared with PD, and the prognosis of minimally invasive surgery was poor. ConclusionDPPHR remains highly controversial for surgical intervention in benign pancreatic disease and has enormous scope for advances in minimally invasive surgical applications in pancreatic surgery, but more clinical studies are needed to verify its clinical efficacy.
Objective To compare the surgical outcome of surgical treatment for chronic pancreatic head mass pancreatitis combined with pancreatic duct stones.
Methods Clinical data of 19 patients diagnosed as chronic pancreatic head mass pancreatitis combined with pancreatic duct stones by pathology in our hospital were analyzed retrospectively and patients were divided into Beger group (n=9) and Frey group (n=10) according to operation type.
Results The duration of operation, blood loss, morbidity, ratio of postoperative pancreatic fistula of grade B, ratio of abdominal cavity infection, ratio of gastric emptying dysfunction, total length of hospital stay, and total hospitalization cost in Frey group were less or lower than those in Beger group significantly (P ＜0.05). None of death or pancreatic fistula of grade C happened in both 2 groups, and abdominal pain and jaundice were subsided in all patients. There were 18 patients (94.7%) were followed up for (8.6±2.5) years ( 5-12 years), and just 1 patient of Frey group was not available for followup. The ratios of 5-year pain subsided of 2 groups were both 7/9, there was no significant difference between the 2 groups (P>0.05). During the follow-up period, there was no dead, relapsed, cancerate or reoperation, but 2 patients suffered from diabetes (1 patient of Frey group and 1 patient of Beger group), 2 patients suffered from steatorrhea (1 patient of Frey group and 1 patient of Beger group), and there was no significant difference between the 2 groups in the ratios of diabetes and steatorrhea (P>0.05).
Conclusion The effect is equal for Frey surgery and Beger surgery in treatment of chronic pancreatic head mass pancreatitis combined with pancreatic duct stones, but recover of patient who receives Frey surgery is better than that of Beger surgery.
ObjectiveTo study the expression of HOX A9 mRNA and its clinicopathological significance in the benign and malignant lesions of pancreas. MethodsIn situ hybridization for HOX A9 mRNA was used on routine paraffinembedded sections. ResultsThe positive rate and scoring mean of HOX A9 mRNA expression was significanfly lower in pancreatic carcinoma (49%, 3.3±2.1) than that in chronic pancreatitis (95%, 5.4±0.8) and pericancerous tissues (80%, 4.6±1.2), the negative case of HOX A9 mRNA in chronic pancreatitis and pericancerous tissues showed middle or severelyatypical hyperplasis of the ductal epitheli. The positive rate and scoring mean of HOX A9 mRNA expression was significantly higher in the cases of welldifferentiation (63%, 4.0±2.2) or without metastasis (64%, 4.1±2.2) than that in the ones of poorlydifferentiation (32%, 2.6±2.3) or with metastasis (32%, 2.7±2.2). ConclusionThe expression of HOX A9 mRNA might be related the carcinogenesis, progress, biological behaviors, and prognosis of pancreatic carcinoma. The assay of HOX A9 mRNA expression in the benign lesions of pancreas might have important clinical values in the prevention and earlystage finding of the pancreatic carcinoma.
