Abstract Simulated breast lesion models, including microcalcification clusters and masses, have been used in several studies. Realistic models are required for virtual clinical trials to be representative of performance. Multiple methods exist generate with various levels realism depending on the application. First, can obtained using mathematical methods, such as approximating a 3D geometric s...

This study was to investigate the influence of composite resins with different elastic modulus, cavity modification and occlusal loading condition on the stress distribution of restored notch-shaped noncarious cervical lesion using 3-dimensional (3D) finite element (FE) analysis. The extracted maxillary second premolar was scanned serially with Micro-CT. The 3D images were processed by 3D-DOCTO...

Speckle appears in all conventional ultrasound images and is caused by the use of a phase-sensitive transducer. Speckle is an undesirable property as it can mask small but perhaps diagnostically significant image features. In this paper a homomorphic, hybrid nonlinear processing method, based on cancellation of scattering interference, is developed and examined. Experiments with synthetic and r...

Malignant perivascular epithelioid cell tumor (PEComa) is a rare tumor composed of hybrid tumor cells characterized by immunoreactivity for both melanocytic and smooth muscle markers. This paper describes the uncommon esophageal location of an 8 cm PEComa in a 75-year-old Caucasian man who was presented with ingravescent dysphagia. Although PEComas arising within the gastrointestinal tract are ...

introduction: the claustrum interconnects with the allocortical and neocortical regions and also projects to the hippocampus and the amygdala. .the role of claustrum in the complex partial seizure is not clear. thus in this study the effect of amygdala lesion on anterior claustrum kindled seizures in rat were investigated. methods: male wistar rats, weighting 250-300 g, were received dc current...

purpose: to report a rare malignant melanoma with chalazion-like presentation.  case report: a 36-year old woman with a chalazion-like mass in the left upper lid, having been resected twice, was referred to our center for the management of recurrence. the total resection of the suspicious area was done. histopathologic examination confirmed the diagnosis of malignant melanoma. the appropriate r...

aim : the purpose of this study was to assess the incidence of 16bp insertion of intron 3 p53 in gastritis lesion and its correlation with clinicopathological aspects. background : p53 alterations have been implicated in the development of gastric malignancies. patients and methods : 97 gastritis and normal adjacent tissues were investigated for p53 gene analysis using pcr-sequencing of intron3...

background: limited data available about the mechanisms of dysphagia and areas involving swallow after brain damage; accordingly it is hard to predict which cases are more likely to develop swallowing dysfunction based on the neuroimaging. the aim of this study was to investigate the relationship between brain lesions and dysphagia in a sample of acute conscious stroke patients. materials and m...

tuberculosis is a major cause of morbidity and mortality worldwide. it is a chronic granulomatous disease that can affect any part of the body, including the oral cavity. oral lesions of tuberculosis, though uncommon, are seen in both the primary and secondary stages of the disease. this article presents a case of tuberculosis of the buccal mucosa, manifesting as non-healing, non-painful ulcer....

ownloade kground: Few population-based studies have investigated premalignant and malignant cervical malities in Beijing. thods: A total of 6,385 randomly selected sexually active women were interviewed and examined. al lesion was diagnosed using cytology and histology. High-risk human papillomavirus (HPV) was ed by the second-generation hybrid capture test and typed by gene chip of DNA from pa...