About the event: Atypical anorexia nervosa (AAN) is a sub-diagnosis for patients who meet all the criteria for anorexia, except for being underweight. However, the term “atypical” is a glaring misnomer, as AAN affects up to 4.9% of people during their lifetime, whereas anorexia nervosa (AN) affects about 0.6%.
Atypical anorexia became a subtype of other specified feeding and eating disorder (OSFED) in 2013, leading to many common misconceptions about the severity of the illness and its best treatment approach. Using data from a large patient population receiving virtual treatment across the US, this presentation will explore these diagnostic labels, assess the severity and treatment trajectory for patients with AAN compared to AN, and propose considerations for future diagnostic clarifications.
There will be time for Q&A.
Learning objectives: After participating in this session, attendees should be able to:
1. Explain the differences (or lack thereof) between Atypical Anorexia Nervosa and Anorexia Nervosa.
2. Recognize the severity of Atypical Anorexia Nervosa and urgency for treatment.
3. Identify necessary components for treatments for Atypical Anorexia Nervosa.

Shannon Patterson, PhD is a licensed psychologist and Clinical Instructor at Equip, specializing in eating disorder treatment at the intersection of psychological adjustment and chronic illness. Trained as a health psychologist, she delivers individualized, evidence-based psychotherapy to diverse populations and provides training and consultation to therapists and healthcare professionals. In addition to her clinical work, Shannon serves as a volunteer ad hoc reviewer for the International Journal of Eating Disorders and is a co-author of the forthcoming Weight-Inclusive CBT Workbook for Eating Disorders.
Registration cost:Free
Following your event attendance, you’ll receive an email from TPN.health prompting you to complete your evaluation. The evaluation will be located in your TPN.health account under CE Wallet evaluations. Once the evaluation is complete, you’ll receive the CE which will also live in your CE Wallet under certificates.
Physicians, nurses, dietitians, nutritionists, psychologists, social workers, marriage and family therapists, addiction counselors, and counselors are all eligible for CE or CME credit. For other credentials interested in CEs, please review the CE Details page within the TPN.health registration page to confirm that you’ll receive CEs.
While slides won’t always be shared, any shared slides will be made available on the event page under resources. During the presentation we’ll indicate whether slides will be shared or not.
When you click the “register via TPN.health” button, you’ll be rerouted to the registration page on TPN’s website. If you don’t have a TPN account, you will be prompted to create one for free. Your membership will remain active and free!
After registering for the webinar, you will receive an email from TPN.health with instructions and a link to join. You can also access the event by logging into your TPN.health account, under CE Wallet and My Education.
Additional CE information
Refund policy: This activity is offered free of charge.
Target audience: The target audience for this presentation includes medical doctors, nurse practitioners, registered dietitians, therapists, case managers, and other health care providers.
Learning format / activity type: Live activity
Continuing Education accreditation:
APA: Equip is approved by the American Psychological Association to sponsor Continuing Education for psychologists. Equip maintains responsibility for this program and its content.
ACCME: Equip is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.
Other healthcare professionals: We are happy to provide a certificate of attendance for all providers who stayed for the duration of the activity, however, it is up to the individual attendee to determine whether this activity meets the Continuing Education requirements of their licensing or credentialing organization. Please check your state’s rules and regulations for more information regarding your Continuing Education requirements.
Attendance: Full attendance is required to earn Continuing Education credit through the APA. It is up to each individual attendee to determine whether this activity meets the Continuing Education requirements of their licensing or credentialing organization. Please check your state’s rules and regulations for more information regarding your Continuing Education requirements.
Disclosures:
- Equip receives no commercial funding for these activities.
- The presenter(s) mentioned above, faculty for this educational activity, have no relevant financial relationship(s) with ineligible companies to disclose. Natalia Orloff, PhD, Jessie Menzel, PhD, and Angela Celio Doyle, PhD, FAED, planners for this educational activity, have no relevant financial relationships with ineligible companies to disclose.
- Maria La Via, MD, planner for this educational activity, owns individual stock in the following ineligible companies: Danahar, Gilead, 3M, GSK, Merck, Seres Therapeutics, Solventum, Novavax, Organon, Pfizer, and Viatris. All of the relevant financial relationships listed for these individuals have been mitigated.
