Jun Nakahodo

ORCID: 0000-0003-1434-3410
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About
Contact & Profiles
Research Areas
  • Pancreatic and Hepatic Oncology Research
  • Pancreatitis Pathology and Treatment
  • Gastrointestinal disorders and treatments
  • Esophageal and GI Pathology
  • Gallbladder and Bile Duct Disorders
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Pediatric Hepatobiliary Diseases and Treatments
  • Neuroendocrine Tumor Research Advances
  • IgG4-Related and Inflammatory Diseases
  • MRI in cancer diagnosis
  • Gastrointestinal Tumor Research and Treatment
  • Appendicitis Diagnosis and Management
  • Biliary and Gastrointestinal Fistulas
  • Alcohol Consumption and Health Effects
  • Liver Disease and Transplantation
  • Nanoplatforms for cancer theranostics
  • Dermatological and COVID-19 studies
  • Neuroblastoma Research and Treatments
  • Gastric Cancer Management and Outcomes
  • Nanoparticle-Based Drug Delivery
  • Abdominal Trauma and Injuries
  • Abdominal vascular conditions and treatments
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • Liver Disease Diagnosis and Treatment
  • Renal and related cancers

Tokyo Metropolitan Komagome Hospital
2020-2025

Juntendo University
2019-2022

Nagasaki Rousai Hospital
2015

Hamamatsu Rosai Hospital
2009-2010

Radiological evidence of focal pancreatic parenchymal atrophy (FPPA) may presage early ductal adenocarcinoma (PDAC) development. We aimed to clarify the incidence FPPA and clinicopathological features PDAC with before diagnosis. Data on endoscopic ultrasound-guided fine-needle biopsies surgical samples from 170 patients cancer histologically diagnosed between 2014 2019 were extracted pathology database Komagome Hospital Juntendo University hospital retrospectively evaluated together 51...

10.1016/j.pan.2022.10.003 article EN cc-by Pancreatology 2022-10-17

Background and AimsThe diagnostic performance of EUS-guided fine-needle aspiration/biopsy sampling (EUS-FNAB) for pancreatic ductal adenocarcinoma (PDAC) ≤10 mm in diameter is relatively low. Pancreatic juice cytology (PJC) has gained attention because its high sensitivity small PDACs. We aimed to clarify the ability EUS-FNAB salvage PJC PDAC mm.MethodsData obtained from attempted patients with EUS-confirmed tumors (excluding metastases/malignant lymphomas) were retrospectively analyzed....

10.1016/j.gie.2023.08.006 article EN cc-by-nc-nd Gastrointestinal Endoscopy 2023-08-18

Epidermoid cyst in an intrapancreatic accessory spleen (ECIPAS) is a rare, pancreatic cystic lesion covered with epithelioid cells and surrounded by splenic tissue.[1] Most cases of ECIPAS are diagnosed postoperatively based on pathological findings.[2] There few reports contrast-enhanced EUS (CE-EUS) or EUS-FNA. We present herein case CE-EUS A 28-year-old, female patient was admitted cysts. Contrast-enhanced computed tomography revealed 17-mm, multilocular 7-mm, unilocular the tail. The...

10.1097/eus.0000000000000047 article EN cc-by Endoscopic Ultrasound 2024-01-01

Endoscopic ultrasonography (EUS) is used to observe the stricture of main pancreatic duct (MPD) and in diagnosing cancer (PC). We investigate findings on EUS by referring histopathological resected specimens.Six patients with carcinoma situ (CIS) 30 invasive 20 mm or less were included. The preoperative classified as follows. A1: Simple type-no around stricture; A2: Hypoecho type-localized hypoechoic area without demarcation A3: Tumor type-tumor B: Dilation type-the dilation a downstream C:...

10.3390/diagnostics9010015 article EN cc-by Diagnostics 2019-01-23

We report that an oblique-viewing endoscope facilitates endoscopic retrograde cholangiopancreatography (ERCP) in Billroth II reconstruction. With this endoscope, we carried out ERCP Roux-en-Y reconstruction.Fifteen patients with reconstruction were enrolled. Eleven of these had undergone gastrectomy, while Whipple's operation or choledochectomy each been two patients. Among the 11 post-gastrectomy patients, eight bile duct stones, and there was one case pancreatic abscess chronic...

10.1111/j.1443-1661.2009.00882.x article EN Digestive Endoscopy 2009-06-22

Stenotic pancreatico‐enteric anastomosis is one of the serious late complications after a pancreaticoduodenectomy. We report case stenotic pancreaticojejunostomy with pancreatic juice fistula drained externally, which was treated using percutaneous procedures combined rendezvous method. A 77‐year‐old woman referred to our hospital for an endoscopic treatment remove drainage tube from fluid collection due fistula. She had undergone pylorus‐preserving pancreatoduodenectomy Roux‐en‐Y...

10.1111/j.1443-1661.2010.00990.x article EN Digestive Endoscopy 2010-06-21

Abstract Intraductal oncocytic papillary neoplasm (IOPN) is a rare intraductal tumor of the pancreatobiliary system. Currently, little known about its distinct characteristics, unlike mucinous neoplasms (IPMN) and bile duct (IPNB). The present study compared 22 IOPNs (18 pancreatic 4 biliary) with those 61 IPMNs/8 IPNBs. were classified into pure combined types, depending on coexistence IPMN/IPNB. Multiple gene expression analysis (nCounter system) was performed, hierarchical clustering...

10.1038/s41598-020-64920-6 article EN cc-by Scientific Reports 2020-05-18

Objectives This study aimed to assess the pitfalls of current International Association Pancreatology guidelines (IAPCG2017) for pancreatic intraductal papillary mucinous neoplasm (IPMN) and identify criteria future guidelines. Methods Eighty surgically resected, consecutive IPMN cases were analyzed. Data including tumor site, duct type, surgery type collected. Based on radiological data, retrospectively classified as high-risk stigmata (HRS) non-HRS. Pathological grades histological...

10.1097/mpa.0000000000001487 article EN Pancreas 2020-02-01

Gallbladder (GB) wall thickening sometimes occurs in patients with autoimmune pancreatitis (AIP), a condition for which the name, IgG4-related cholecystitis, was proposed. We examined radiological findings of GB diseases and clinical features presented hypothesis its pathogenesis.GB defined by thickness ≥ 4 mm. 258 disease. Clinical imaging 200 AIP without were then compared.GB detected 58 (29%) two isolated sclerosing cholangitis. In 60 GBs examined, diffuse, walls possessing smooth inner...

10.1080/00365521.2021.1971758 article EN Scandinavian Journal of Gastroenterology 2021-09-05

A 59-year-old woman presented with a chief complaint of melena. She had no abdominal findings, such as tenderness or tapping pain. Laboratory tests revealed white blood cell count 5,300 cells/μL and C-reactive protein level 0.07 mg/dL. Inflammation anemia (hemoglobin 12.4 g/dL) were denied. Contrast-enhanced computed tomography (CT) multiple duodenal diverticula air surrounding descending diverticulum. Based on these diverticular perforation (DDP) was suspected. Oral food intake stopped,...

10.2169/internalmedicine.1211-22 article EN Internal Medicine 2023-03-21

Ryota Sagami, Kentaro Yamao, Ryuki Minami, Jun Nakahodo, Hidetoshi Akiyama, Hidefumi Nishikiori, Kazuhiro Mizukami, Kenji Vikram Bhatia, Yuji Amano, and Kazunari Murakami. Gut Liver -0001;0:. https://doi.org/10.5009/gnl220521

10.5009/gnl220521 article SW cc-by-nc Gut and Liver 2023-05-11

A 46-year-old female patient was referred to our hospital for endoscopic treatment of stenotic pancreatogastrostomy. She had undergone pylorus-preserving pancreatoduodenectomy due duodenal carcinoma the papilla Vater 5 years before referral. Two after operation, she be hospitalized several times during a 1-year period because acute recurrent pancreatitis caused by stenosis anastomosis pancreatoduodenostomy. An ultrasound (EUS)-guided rendezvous technique selected puncture main pancreatic...

10.1111/j.1443-1661.2009.00887.x article EN Digestive Endoscopy 2009-06-22

Intraductal papillary neoplasms of the bile duct (IPNB) are histologically and clinically classified as type 1 2. This study aimed to identify differences between these two types.Based on multiple gene expression analysis (MGEA) using 1, 2, pancreatic intraductal mucinous (n=4, 6, 5, respectively), immunohistochemistry DNMT1 methylation-specific PCR for p16, APC, BRCA1, hMLH1, TIMP3, SOX17 were performed 2 IPNBs (n=14, each).The protein was highly expressed (p<0.001) in 28.6% cases all...

10.21873/anticanres.15771 article EN Anticancer Research 2022-05-31

While autoimmune pancreatitis (AIP) responds well to steroid therapy, the high relapse rate in type 1 AIP remains a critical problem. The present study examined predictors of following therapy.

10.1080/00365521.2024.2398771 article EN Scandinavian Journal of Gastroenterology 2024-09-11

Background/Aim: We previously reported the usefulness of detecting aberrant methylation in tumor suppressive microRNAs (miRNAs) bile and plasma to discriminate pancreaticobiliary cancers from benign diseases. This study analyzed miRNAs pancreatic juice identify those specific cancer (PC). Patients Methods: Pancreatic was collected 20 patients with PC, including eight intraductal papillary mucinous carcinoma (IPMC), two low grade-pancreatic intraepithelial neoplasia (LG-PanIN), 32...

10.21873/anticanres.17353 article EN Anticancer Research 2024-12-01

To improve the poor prognosis of pancreatic ductal adenocarcinoma (PDAC), diagnosis early-stage PDAC is essential. In particular, high-grade intraepithelial neoplasia/carcinoma in situ (HG-PanIN/CIS) best option. However, it almost impossible to directly observe HG-PanIN/CIS. Thus, identifying a secondary imaging finding due disorder important. Focal parenchymal atrophy (FPPA) and hypoechoic area have been reported as preferred signs. We studied 50 patients clarify effectiveness FPPA...

10.18103/mra.v9i8.2522 article EN Medical Research Archives 2021-01-01
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