CD4 and cutaneous mastocytosis: In other words, the clinical score of risk of mortality of individual HIV/CM patients was calculated using the following formula: Prognostic score = 2 × (CD4+ T-cell count) + 1 × (ICP) + 2.5 × (impaired consciousness) + 2 × (stiff neck) + 1 × (urea) + 1.5 × (age).