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The role of anatomical variability in safe clinical practice is underappreciated. A lack of familiarity of anatomical variations is at the center of a multitude of medical and surgical errors. The recent rise in litigation due to such errors suggests that patient care may be compromised. This makes the knowledge of anatomical variation essential to medical education. Empirical studies were identified by searching several databases and repositories, and the Medical Education Research Quality Instrument (MERSQI) was used to assess study quality. Eight studies were eligible for this systematic review; three of which were conference abstracts. Thematic summary of these studies yielded six themes namely: (1) "importance of anatomical variation in medical education"; (2) "the ideal time to introduce anatomical variation in medical education"; (3) "important anatomical variations to include in medical education"; (4) "approaches to teaching anatomical variation"; (5) "assessing knowledge on anatomical variation"; (6) "barriers to including anatomical variation in medical education." Including anatomical variations in medical education would improve clinical reasoning and surgical outcomes. Following the completion of this review, three recommendations were made: (1) increasing the emphasis of anatomical variation in medical education; (2) developing more resources for anatomical variation education; (3) investigating the implications of lack of knowledge of anatomical variation in medical education through further research.

Anatomical education has suffered from reduced teaching time and poor availability of staff and resources over the past thirty years. Clay-based modeling (CBM) is an alternative technique for teaching anatomy that can improve student knowledge and experience. This systematic review aimed to summarize and appraise the quality of the literature describing the uses, advantages, and limitations of CBM compared to alternative methods of teaching human gross anatomy to students or qualified healthcare professionals. A systematic search of Embase, MEDLINE, Scopus, and Web of Science databases was conducted, and the Medical Education Research Quality Instrument (MERSQI) was used to assess study quality. Out of the 829 studies identified, 12 papers met the inclusion criteria and were eligible for this review. The studies were of high quality, with a mean MERSQI score of 11.50/18. Clay-based modeling can be used to teach all gross anatomical regions, and 11 studies demonstrated a significant improvement in short-term knowledge gain in students who used CBM in comparison to other methods of learning anatomy. Eight studies that included subjective assessment showed that CBM is rated highly. However, some studies showed that students viewed CBM as juvenile and experienced difficulty making the models. Additionally, there is no evidence to suggest that CBM improves long-term knowledge. Clay-based modeling is an effective learning method for human gross anatomy and should be incorporated into the anatomists' toolkit. In the future, more randomized controlled studies with transparent study designs investigating the long-term impact of CBM are needed.