"Truffle sign". A suspicious malignant pattern of lymphadenopathies in children observed on ultrasound. Preliminary study.

Background: The differential diagnosis of lymphadenopathies in children including benign and malignant conditions is often difficult to identify by ultrasound (US). The lymphadenopathies in children are frequent and mostly benign, therefore it is essential to decide what patients should undergo further studies.

Objective: To describe the potential usefulness of a new suspicious ultrasound sign on pediatric lymphadenopathies that can orient the diagnosis of malignancy.

A Method for Functional Task Alignment Analysis of an Arthrocentesis Simulator.

Introduction: During simulation-based education, simulators are subjected to procedures composed of a variety of tasks and processes. Simulators should functionally represent a patient in response to the physical action of these tasks. The aim of this work was to describe a method for determining whether a simulator does or does not have sufficient functional task alignment (FTA) to be used in a simulation.

Diagnostic errors with inserted tubes, lines and catheters in children.

Background: Tubes and catheters are frequently used in the care of hospitalized children. Yet little is known about errors in diagnosis in commonly implanted devices in a pediatric population.

Objective: The purpose of this study was to determine the frequency and range of diagnostic errors with inserted devices in a pediatric population.

Clinical preceptor evaluation of veterinary students in a distributed model of clinical education.

The study reported here investigates the reliability and validity of a standardized evaluation form used to assess students' knowledge, clinical skills, interpersonal skills, and professionalism during fourth-year clinical rotations in a distributed model of veterinary education. A form designed to assess veterinary knowledge (5 items), clinical skills (7 items), interpersonal skills (3 items), and professionalism (6 items) was used by clinical preceptors to evaluate student performance across different rotations. For the period January--May 2007, 218 evaluations were completed for 81 students; each student was assessed in at least two rotations.