Results 51 to 60 of about 37,807 (266)

Metastatic rectal cancer in the ampulla of Vater: A unique case

open access: yesCancer Reports, 2022
Background A metastatic lesion located in the ampulla of Vater is considered extremely rare, with only 32 cases reported globally. Case A 65‐year‐old patient was primarily diagnosed with a rectal adenocarcinoma.
Athina A. Samara   +8 more
doaj   +1 more source

Duodenal Carcinoma from a Duodenal Diverticulum Mimicking Pancreatic Carcinoma [PDF]

open access: yes, 2012
An 81-year-old man was found to have a pancreatic head tumor on abdominal computed tomography (CT) performed during a follow-up visit for sigmoid colon cancer. The tumor had a diameter of 35mm on the CT scan and was diagnosed as pancreatic head carcinoma
Furukawa, Masashi   +5 more
core   +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

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

Hyaluronan and Hyaluronidase, which is better for embryo development? [PDF]

open access: yes, 2016
Our aim was to examine size-specific effects of Hyaluronan (HA) on preimplantation embryo development. We investigated the effects of Hyalovet (HA, 500–750 kDa; the size produced by HA synthase-3, which is abundant in the oviduct), or HA treated with ...
Ali A. Fouladi-Nashta   +59 more
core   +2 more sources

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

Optimizing the vertebrate vestibular semicircular canal: could we balance any better? [PDF]

open access: yes, 2004
The fluid-filled semicircular canals (SCCs) of the vestibular system are used by all vertebrates to sense angular rotation. Despite masses spanning seven decades, all mammalian SCCs are nearly the same size.
A. A. Gray   +22 more
core   +2 more sources

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

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