Indolent Systemic Mastocytosis: Understanding the Symptoms and Diagnostic Journey

Health Discovered · Jul 9, 2026 · 32m

Indolent systemic mastocytosis (ISM) is a rare form of systemic mastocytosis (SM) caused by an abnormal buildup of mast cells throughout the body. What causes ISM, and how is it diagnosed? In this episode, we speak with Aaron Gerds, MD, Associate Professor of Medicine in Hematology and Medical Oncology at the Cleveland Clinic Cancer Institute, about the signs and symptoms of ISM, the diagnostic process, and how ISM differs from other forms of systemic mastocytosis. We also hear from Candice Pauley, an ISM patient and co-host of the Mast Cast Pod, who shares her journey to diagnosis, her…