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Figure 3: (a) The typical crateriform architecture of keratoacanthoma with a peripheral collarette (H and E, ×200), (b) well differentiated eosinophilic to pale staining glassy abundant cytoplasm characteristic of keratoacanthoma (H and E, ×400)

Figure 3: (a) The typical crateriform architecture of keratoacanthoma with a peripheral collarette (H and E, ×200), (b) well differentiated eosinophilic to pale staining glassy abundant cytoplasm characteristic of keratoacanthoma (H and E, ×400)