Purpose
This study aimed to address gaps in Korean Standard Series (KSS) information, highlight allergens with increasing patch test positivity, describe potential sources encountered in daily life, and provide guidance on selecting allergen-free alternatives.
Methods
Relevant information was identified from KSS patient instruction sheets (Chemotechnique, Sweden), T.R.U.E. TEST patient instruction sheets (SmartPractice, United States), the Contact Dermatitis Institute allergen database, the American Contact Dermatitis Society allergen information sheets, and searches of the PubMed database. English-language review articles, case series, and case reports identified using keywords related to the 25 KSS allergens were selected.
Results
Information was updated for the following allergens: nickel, cobalt, potassium dichromate, balsam of Peru, paraben mix, N-isopropyl-N'-phenyl-p-phenylenediamine, formaldehyde, p-tert-butylphenol formaldehyde resin, methylchloroisothiazolinone/methylisothiazolinone, colophonium, imidazolidinyl urea, and 2-mercaptobenzothiazole. Emerging sources included electronic devices, personal protective equipment, including masks whose use increased during the COVID-19 (coronavirus disease 2019) pandemic, nail products, and children’s toy slime. In addition, occupational allergen information sheets were developed for hairdressers, healthcare workers, dentists, dental hygienists, and cooks. The Korean-language allergen sheets are provided in the Supplementary Materials.
Conclusion
Because the KSS has not been revised for more than 2 decades, emerging allergen sources may be inadequately represented in the existing patient information. Accordingly, updated patient instruction sheets were developed to improve patient understanding and facilitate the practical application of patch test results.

An 83-year-old woman presented with a 10-day history of sudden-onset diplopia in the left eye, with no preceding trauma or anticoagulant use. Initial orbital magnetic resonance imaging (MRI) on day 10 revealed a well-circumscribed retrobulbar lesion along the left inferior rectus muscle. The lesion showed heterogeneous T1 hyperintensity, low-to-intermediate T2 signal, and no definite solid enhancement, raising concern for a hemorrhagic orbital mass or neoplasm. Serial noncontrast computed tomography (CT) on days 20 and 49 showed progressive decreases in lesion size and attenuation. Follow-up MRI on day 180 confirmed complete spontaneous resolution, with no residual abnormality or underlying neoplasm. This case demonstrates that serial CT and MRI can guide safe conservative management of spontaneous retrobulbar hematoma and help avoid unnecessary surgery in clinically stable patients.

Purpose
Clinical fieldwork in genetic counseling education is constrained by limited training sites, shortages of clinical supervisors, and administrative burdens. Simulation-based learning, including role-play, has therefore been used to support development of counseling competencies. This study described the development, implementation, operational structure, and feasibility of a role-play-based practicum in a graduate genetic counseling program.
Methods
This retrospective descriptive report was based on Genetic Counseling Practicum, a spring 2024 course for 11 third-semester students in a graduate genetic counseling program in South Korea. Twenty-two role-play scenarios were developed, including 11 hereditary cancer cases and 11 pediatric or adult genetic disorder cases. The scenarios simulated pretest and posttest encounters during a 6-week, 2-block practicum. Students alternated between counselor and counselee roles, recorded sessions outside class time, and received domain-guided peer and faculty feedback.
Results
The scenarios covered patient ages from infancy to late adulthood and included somatic and germline pathogenic variants, a negative multigene panel result, and chromosomal or epigenetic abnormalities. All 22 planned sessions were completed and recorded as scheduled, and all 11 students completed their assigned sessions. The planned assignment, recording, review, and feedback procedures were completed without documented omissions. Approximately 11 scheduled class hours were devoted to feedback, and no external clinical sites or supervisors were required.
Conclusion
This study presents an operationally feasible model for a role-play-based practicum with diverse scenarios in a graduate genetic counseling curriculum. It may serve as a practical reference for programs considering similar simulation-based training.