Hiromasa Ohira

ORCID: 0000-0003-4331-0634 · 3 papers in corpus
case-report 2023
Mixed high-grade serous and large cell neuroendocrine carcinoma arising from rectal endometriosis 11 years after hysterectomy
Clinical journal of gastroenterology ·doi:10.1007/s12328-023-01769-y

The malignant gastrointestinal endometriosis transformation is represented by endometriosis-associated intestinal tumors. Endometrioid adenocarcinoma and clear cell adenocarcinoma are most common among the endometrial cancers of all organs.…

other 2018
Pancreatic stents for the prevention of post-endoscopic retrograde cholangiopancreatography pancreatitis should be inserted up to the pancreatic body or tail
World journal of gastroenterology ·doi:10.3748/wjg.v24.i22.2392

AIM: To investigate the location to which a pancreatic stent should be inserted to prevent post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP). METHODS: Over a ten-year period at our hospital, 296 patients underwe…

other 2018
Significance of normal appearance on endoscopic ultrasonography in the diagnosis of early chronic pancreatitis
Endoscopic ultrasound ·doi:10.4103/2303-9027.209870

BACKGROUND AND OBJECTIVES: The Rosemont classification (RC) was developed as a consensus-based standard for the diagnosis of chronic pancreatitis (CP) by endoscopic ultrasonography (EUS), however, it is more complicated than the conventiona…