A Unique Case of Concurrent Langerhans Cell Histiocytosis and Autoimmune Hepatitis Complicated by a Lower Gastrointestinal Bleed: 2256. (October 2019) - Ahmed, Ahmed; Nasir, Umair M.; Delle Donna, Paul; Galan, Mark A.; Jiang, Jie‐Gen; Lingiah, Vivek A.