Sinusitis can be debilitating. Complex frontal sinus disease may be categorized as infectious, or due to tumors or trauma. When frontal sinus disease is refractory to medical management, what types of surgery should we consider? Dr. James Palmer, associate professor and director of the division of rhinology in the department of otorhinolaryngology: head and neck surgery, at Penn Medicine, discusses advances in endoscopic surgical techniques for complex frontal sinus disease. Dr. Lee Freedman hosts.