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Cell size uniformity in healthy tissues contrasts with cell size heterogeneity in pleomorphic tumors. (A) A section of epidermal stratum spinosum is used to illustrate uniformity in cell size that is typical of epithelial tissues. (B)This uniformity is contrasted with the extreme disparities in cell size in a typical pleomorphic melanoma. Stratum spinosum image was taken from http://www.studyblue.com/ while melanoma section was taken from Pathpedia (http://www.pathpedia.com/).
