Paneth cells (PCs) are specialized epithelial cells located at the base of the crypts of Lieberkühn in the small intestine and colon, that have been occasionally identified in colorectal adenomas and adenocarcinomas. Their presence in these lesions has raised questions regarding their role in colorectal neoplasia and their potential association with adenoma burden. To understand their potential role in carcinogenesis, we conducted an extensive review of the available literature on PubMed, focusing on the occurrence, molecular mechanisms, and implications of Paneth cells in neoplastic lesions of the colorectum. This review synthesizes current findings and discusses the potential of Paneth cells as diagnostic biomarkers and therapeutic targets in colorectal cancer.
Due to its scarcity, the basosquamous carcinoma represents a challenging pathology both as a result of its aggressiveness and potential of relapse and metastases, and also due to unclear management guides. Encountered under the name of basal cell carcinoma or metatypical carcinoma, the pathophysiology of such tumors is still unclear and it is not known yet if it either derives from a basal cell carcinoma or it could be a variant of transition to a squamous cell carcinoma. Due to low incidence, unclear treatment protocols and not enough research regarding squamous component in the aggressivity of basosquamous carcinoma, the aim of this paper is to analyze histopathological features of 5 cases of basosquamous carcinoma from Plastic Surgery Department of Emergency University Hospital, Bucharest, and correlate them with current literature.
