Infectious diseases of the upper gastrointestinal tract are rare, but certain bacteria including Treponema pallidum and Mycobacterium tuberculosis may infect the esophagus, stomach, and duodenum even in an immunocompetent individual.Gastric syphilis is difficult to diagnose because it presents with non-specific symptoms and diverse endoscopic findi
The functional morphology of sauropod dinosaur long necks has been studied extensively, with virtual approaches yielding results that are difficult to obtain with actual fossils, due to their extreme fragility and size.However, analyses on virtual fossils have been questioned on several of their premises, such as the ability to accurately reconstru
Right hemisphere stroke patients frequently present with a combination of lateralised and non-lateralised attentional deficits characteristic of the neglect syndrome.Attentional deficits are associated with poor functional outcome and are challenging to treat, with non-lateralised deficits often persisting into the chronic stage and representing a