A pseudoglandular, basal-cell carcinoma, mimicking "skin tissue with invasion growth of adenocarcinoma".
D000230:Adenocarcinoma / Q000473:pathology*; D000368:Aged; D001005:Anus Neoplasms / Q000473:pathology*; D002280:Basal Cell Carcinoma / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans