title: Invasive carcinoma arising in villous adenomata of the appendix.
abstract: Two cases of invasive carcinoma arising in villous adenomata of the appendix are described, demonstrating the malignant potential of these rare appendiceal lesions.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000236:Adenoma / Q000473:pathology*; D000368:Aged; D001063:Appendiceal Neoplasms / Q000473:pathology*; D002430:Cecal Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009378:Neoplasms, Multiple Primary / Q000473:pathology*