Welcome to PsychEd, the psychiatry podcast for medical learners, by medical learners. This episode covers the diagnosis of borderline personality disorder with expert guests: Dr. Robert Biskin, Associate Professor in the Department of Psychiatry at McGill University, psychiatrist at the Borderline Personality Disorder Clinic at the McGill University Health Centre, as well as inpatient psychiatrist at the Jewish General Hospital. Dr. Ronald Fraser, Associate Professor in the Department of Psychiatry at McGill University, Adjunct Professor at Dalhousie University, head of the Inpatient Detoxification Services and Addictions Unit, as well as director of the Extended Care Borderline Personality Disorder Clinic at the McGill University Health Centre.   By the end of this episode, you should be able to… List the DSM-5 diagnostic criteria of borderline personality disorder. Recall the epidemiology of borderline personality disorder. Consider the risk factors and posited causal mechanisms for borderline personality disorder, including developmental and neurobiological mechanisms.  Discuss the clinical presentation of borderline personality in different clinical settings, including the Emergency and Outpatient settings.  Recognize the differential diagnoses for patients presenting with borderline personality disorder. List the common comorbid psychiatric and general medical conditions with borderline personality disorder. Discuss the common diagnostic challenges and pitfalls. Explore the stigma surrounding the diagnosis of borderline personality disorder, and discuss a therapeutic approach to providing psychoeducation to patients with this diagnosis.    Guests: Dr. Robert Biskin and Dr. Ronald Fraser. Hosts: Dr. Sarah Hanafi (PGY3), Dr. Nima Nahiddi (PGY3), Audrey Le (CC4). Audio editing by Audrey Le. Show notes by Dr. Nima Nahiddi.   Interview Content: Introduction – 0:00 Learning objectives – 2:03 DSM-5 definition of personality disorder, and borderline personality disorder (BPD) – 3:00 Other associated features of BPD – 4:36 Distinguishing BPD from other psychiatric and co-morbid conditions – 5:55 Epidemiology of BPD – 13:48 BPD over the lifecycle – 18:05 Explanatory models for the development of BPD – 21:20 Differences in the presentation of BPD – 26:00 Approach to a BPD diagnosis in the emergency department – 31:05 Stigma surrounding BPD diagnosis and disclosure of diagnosis – 33:51 Clinical pearls for screening of BPD – 41:11 Evidenced based screening tools or scales for BPD diagnosis – 46:22 Closing – 48:40 Resources: MSI-BDP: MacLean Screening Index for BPD Diagnostic Interview for BPD – Revised (DIB-R): https://psycnet.apa.org/record/1990-11356-001 Articles: Diagnosing borderline personality disorder | CMAJ   References: Biskin, R.S., Paris, J. (2012). Diagnosing borderline personality disorder. CMAJ. 184 (16), 1789-1794. Zanarini, M. C., Gunderson, J. G., Frankenburg, F. R., & Chauncey, D. L. (1989). The revised Diagnostic Interview for Borderlines: Discriminating BPD from other Axis II disorders. Journal of Personality Disorders, 3(1), 10–18. American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). https://doi.org/10.1176/appi.books.9780890425596   CPA Note: The views expressed in this podcast do not necessarily reflect those of the Canadian Psychiatric Association. For more PsychEd, follow us on Twitter (@psychedpodcast), Facebook (PsychEd Podcast), and Instagram (@psyched.podcast). You can provide feedback by email at psychedpodcast@gmail.com. For more information, visit our website at psychedpodcast.org.