Results 51 to 60 of about 37,954 (251)

Clinical features of gallstone impaction at the ampulla of Vater and the effectiveness of endoscopic biliary drainage without papillotomy

open access: yesEndoscopy International Open, 2016
Background and study aims: Gallstone impaction at the ampulla of Vater is a critical condition, and the standard treatment is endoscopic papillotomy.
Yuichi Takano   +6 more
doaj   +1 more source

A case of distal extrahepatic cholangiocarcinoma with two positive resection margins [PDF]

open access: yes, 2016
Cholangiocarcinoma is an uncommon primary malignancy of the biliary tract that is challenging to diagnose and treat effectively due to its relatively silent and late clinical presentation.
Andersen   +42 more
core   +2 more sources

Preoperative Aortic Calcification Volume Predicts Postoperative Complications in Nonpancreatic Cancer Patients Undergoing Pancreaticoduodenectomy

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
ABSTRACT Background/Objectives Postoperative complications following pancreaticoduodenectomy (PD) remain high, particularly in patients with soft pancreatic texture. Abdominal aortic calcification volume (AACV), a surrogate marker of systemic arteriosclerosis, has been associated with increased surgical risk in lower gastrointestinal procedures ...
Masaki Horiuchi   +9 more
wiley   +1 more source

Survival Outcomes of Gemcitabine–Cisplatin–S‐1 Versus Gemcitabine–Cisplatin in Unresectable Biliary Tract Cancer: A Multicenter Retrospective Study With a Focus on Conversion Surgery

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
In this multicenter retrospective study conducted by the Biliary Tract Club, we compared survival outcomes between gemcitabine–cisplatin–S‐1 (GCS) and gemcitabine–cisplatin (GC) in patients with unresectable biliary tract cancer, with a particular focus on conversion surgery. GCS was associated with longer overall and progression‐free survival compared
Hisashi Kosaka   +27 more
wiley   +1 more source

Signet Ring Cell Carcinoma of the Ampulla of Vater: A Rare Histopathological Variant

open access: yesCase Reports in Gastroenterology, 2018
Signet ring cell carcinoma (SRCC) of the ampulla of Vater is an extremely rare tumor. Our case describes a 45-year-old female presenting with jaundice and pruritus. Computed tomography, endoscopy, and endoscopic retrograde cholangiopancreatography showed
Guus W. de Klein   +4 more
doaj   +1 more source

Novel method for evaluating the indication for endoscopic papillectomy in patients with ampullary adenocarcinoma

open access: yesScientific Reports, 2021
This study aimed to determine the clinicopathological features of the subtypes of ampullary carcinoma (AC) to explore the indications for endoscopic papillectomy (EP) in early AC.
Kenjiro Yamamoto   +15 more
doaj   +1 more source

The morphology of the oval window in Paranthropus robustus compared to humans and other modern primates

open access: yesThe Anatomical Record, EarlyView.
Abstract The oval window (OW) is an opening connecting the inner and middle ear. Its area has been shown to consistently scale with body mass (BM) in primates, and has been used alongside semi‐circular canal (SCC) size to differentiate Homo sapiens and fossil hominins, including Paranthropus robustus.
Ruy Fernandez, José Braga
wiley   +1 more source

Signet Ring Cell Carcinoma of the Vater's Ampulla: A Very Rare Malignancy

open access: yesCase Reports in Oncological Medicine, 2012
Most tumors affecting Vater's ampulla are adenocarcinomas, and other histological variants are less frequent. Signet ring cell carcinoma is more commonly found in the stomach than at other sites of the digestive system.
K. Daoudi   +8 more
doaj   +1 more source

Vortex Vein Ampulla [PDF]

open access: yesOphthalmology, 2021
Patrick Murtagh   +2 more
openaire   +2 more sources

The first relatively complete exoccipital-opisthotic from the braincase of the Callovian pliosaur, Liopleurodon [PDF]

open access: yes, 2003
A newly recognized left exoccipital-opisthotic of a Callovian pliosaur, derived from the Peterborough or lower Stewarby Members of the Oxford Clay Formation of Peterborough, is described and figured.
Evans, M., Liston, J.J., Noe, L.F.
core   +1 more source

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