Data about the proliferative activity of neoplastic cells of a case series of 31 canine splenic hemangiosarcoma

The dataset contains the data on ki67 expression in neoplastic cells of 31 canine splenic hemangiosarcomas. For each case are included the signalment of dogs, including sex, age and breed; clinical information, including the stage of the disease at the diagnosis, time to progression and overall survival time; data regarding the proliferative activity of neoplastic cells including: Ki67 count (% of positive cells over the total neoplastic cells, minimum cell counted 1000), KI67 grid score (number of positive neoplastic cells in a optical grid at 40x), and mitotic count (MC) as total of mitotic figures in 2.37mm2.