Asymptomatic Irreversible Pulpitis is a clinical diagnosis based on subjective and objective findings indicating that the vital inflamed pulp is incapable of healing and that root canal treatment is indicated. These cases have no clinical symptoms and usually respond normally to thermal testing but may have had trauma or deep caries that would likely result in exposure following removal. So, no periapical findings, responds normally to tests, Pt doesn't have pain, but has huge hole that will result in RCT. Histologically has pulpitis.