139 research outputs found
Clinical characteristics, treatment outcomes, and resource utilization in children and adults with eosinophilic gastroenteritis
Eosinophilic gastroenteritis is a rare condition where eosinophilic inflammation occurs in the gastrointestinal tract in the absence of secondary causes. Little is known regarding aetiology, pathogenesis, or natural history
Lymphocytic Esophagitis: An Emerging Clinicopathologic Disease Associated with Dysphagia
Lymphocytic Esophagitis (LyE) is a recently described clinicopathological condition, but little is known about its features and clinical associations
The esophageal biopsy āpullā sign: a highly specific and treatment-responsive endoscopic finding in eosinophilic esophagitis (with video)
Esophageal biopsies in patients with eosinophilic esophagitis (EoE) can feel firm, with resistance appreciated when pulling the forceps to obtain the tissue sample. We aimed to assess the diagnostic utility of the esophageal biopsy pull sign, and determine its histologic associations and response to treatment
Astrophysical reaction rate for Be by photodisintegration
We study the astrophysical reaction rate for the formation of Be
through the three body reaction . This reaction is one
of the key reactions which could bridge the mass gap at A = 8 nuclear systems
to produce intermediate-to-heavy mass elements in alpha- and neutron-rich
environments such as r-process nucleosynthesis in supernova explosions,
s-process nucleosynthesis in asymptotic giant branch (AGB) stars, and
primordial nucleosynthesis in baryon inhomogeneous cosmological models. To
calculate the thermonuclear reaction rate in a wide range of temperatures, we
numerically integrate the thermal average of cross sections assuming a
two-steps formation through a metastable Be. Off-resonant and on-resonant
contributions from the ground state in Be are taken into account. As
input cross section, we adopt the latest experimental data by
photodisintegration of Be with laser-electron photon beams, which covers
all relevant resonances in Be. We provide the reaction rate for
Be in the temperature range from T=10
to T=10 both in the tabular form and in the analytical form. The
calculated reaction rate is compared with the reaction rates of the CF88 and
the NACRE compilations. The CF88 rate is valid at due to lack
of the off-resonant contribution. The CF88 rate differs from the present rate
by a factor of two in a temperature range . The NACRE rate,
which adopted different sources of experimental information on resonance states
in Be, is 4--12 times larger than the present rate at ,
but is consistent with the present rate to within at .Comment: 32 pages (incl 6 figures), Nucl. Phys. in pres
Outcomes of Esophageal Dilation in Eosinophilic Esophagitis: Safety, Efficacy and Persistence of the Fibrostenotic Phenotype
Esophageal dilation is commonly performed in eosinophilic esophagitis (EoE), but there are few long-term data. The aims of this study were to assess the safety and long-term efficacy of esophageal dilation in a large cohort of EoE cases and determine the frequency and predictors of requiring multiple dilations
Accuracy of the Eosinophilic Esophagitis Endoscopic Reference Score in Diagnosis and Determining Response to Treatment
Little is known about the diagnostic utility of the eosinophilic esophagitis (EoE) endoscopic reference score (EREFS), and how scores change in response to treatment. We investigated the operating characteristics of the EREFS in diagnosis of EoE, how the score changes with treatment, and ways to optimize scoring system
Perilesional Enhancement of Hepatic Metastases: Correlation between MR Imaging and Histopathologic FindingsāInitial Observations
PURPOSE: To correlate perilesional enhancement on gadolinium-enhanced magnetic resonance (MR) images with histopathologic findings in patients with hepatic metastases. MATERIALS AND METHODS: In seven patients with histopathologically proved hepatic metastases, MR images obtained before and early and late after the administration of gadopentetate dimeglumine were retrospectively evaluated for perilesional enhancement. The thickness of hepatic parenchyma with intense perilesional enhancement was calculated. The thickness of the histologic tumor border (the zone separating the outermost border of the tumor nodule from the surrounding hepatic parenchyma) also was measured. RESULTS: In three patients, early gadolinium-enhanced images showed prominent perilesional enhancement, which correlated with a thick tumor border containing peritumoral desmoplastic reaction, peritumoral inflammation, and vascular proliferation at histopathologic examination. In one patient, mild perilesional enhancement was shown. At histopathologic examination, the lesion periphery showed moderate peritumoral changes, in the remaining three patients, no perilesional enhancement was observed, and at histopathologic examination there was a thin tumor border that contained minimal to mild periiesional changes. The thickness of hepatic parenchyma with intense perilesional enhancement on early gadolinium-enhanced images showed a strong positive correlation with tumor border thickness at histopathoiogic examination (r = 0.99). CONCLUSION: Intense perilesional enhancement of metastases on early gadolinium-enhanced MR images correlates with histopathologic hepatic parenchymal changes, which include peritumorai desmoplastic reaction, inflammatory cell infiltration, and vascular proliferation
Influence of Race and Gender on the Presentation of Eosinophilic Esophagitis
Eosinophilic esophagitis (EoE) is thought to be more common among males and Caucasians, but little is known about disease presentation among patients with different genders or racial backgrounds. Our aim was to determine the clinical, endoscopic and histologic characteristics of patients with EoE of different genders or racial backgrounds
The extremely narrow-caliber esophagus is a treatment-resistant subphenotype of eosinophilic esophagitis
Some patients with eosinophilic esophagitis (EoE) have an extremely narrowed esophagus, but the characteristics of this group have not been extensively described. We aimed to characterize the narrow-caliber phenotype of EoE, determine associated risk factors, and identify differences in treatment response in this sub-group of patients
Diminishing Effectiveness of Long-Term Maintenance Topical Steroid Therapy in PPI Non-Responsive Eosinophilic Esophagitis
While topical corticosteroids are first-line therapy for eosinophilic esophagitis (EoE), the data regarding long-term effectiveness are lacking. We aimed to determine long-term histologic and endoscopic outcomes of maintenance therapy in EoE steroid responders
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