Cathepsin a-Related Arteriopathy-Strokes-Leukoencephalopathy, also known as carasal, is related to cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1 and htra1 disorder. An important gene associated with Cathepsin a-Related Arteriopathy-Strokes-Leukoencephalopathy is CTSA (Cathepsin A). Affiliated tissues include brain.