Jada Chia Di Lee¹
Tomasz Stanislaw Cecot¹, Guilherme dos Reis Borges Coelho da Fonseca¹, Mandy Liu¹, Michael Magtoto Manio¹, Timothy Ka Chun Un² and Jian Yang¹
1 School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong
2 Division of Cardiology, Department of Medicine, Queen Mary Hospital

Background
Anatomical variation refers to body features that differ from classic anatomy textbook descriptions. Though they may not affect normal function, they can impact clinical practice. Traditionally, anatomical variation is only taught during the clinical phase of medical school, but recent data suggests early exposure can enhance students' knowledge throughout the curriculum1. 

Summary of work
We introduced the building of an AVD repository for medical students of preclinical years to observe and identify anatomical variations during dissection practicals. Suspected variations are photographed and uploaded for verification by teachers and senior students. The platform also includes a quiz section with selected images and questions contributed by the students to test the knowledge of their peers on anatomical variations. 

Results 
The AVD repository has two ways to evaluate preclinical students' knowledge of anatomical variations: 1) checking the validity of the identified structures uploaded on the platform; and 2) quiz performance on the AVD repository. Overall, the AVD repository provides a comprehensive way to evaluate preclinical students' knowledge of anatomical variations, and teachers can assess the student's ability to identify and understand anatomical variations practically and interactively. 

Discussion and Conclusions
Co-creating learning materials and assessments are effective in higher education, and the AVD repository can promote students' motivation for learning anatomical variations by increasing engagement and ownership2. Furthermore, anatomy learning requires the spatial ability to understand the spatial orientation and relationships between body parts. The creation of the AVD repository provides a valuable platform for students to study and be assessed on different anatomical variation structures which can help to train students' cue interpretation and knowledge during preclinical training3. 

Take-home message
Using an AVD repository to generate different types of questions can reinforce students' knowledge of common anatomical variations and increase their awareness of possible variations in future clinical practice. 

References (maximum three)