epithelial neoplasia

Polygonal Cell Carcinoma: Pathology, Diagnosis, and Treatment

1. Introduction Polygonal cell carcinoma represents a distinct morphological descriptor utilized within anatomical pathology to characterize specific variants of malignant epithelial neoplasia. The terminology refers directly to the geometric shape of the neoplastic cells observed under microscopic evaluation. Rather than presenting as typical columnar or squamous cells, these malignant entities possess multiple straight sides and … Read more

In Situ Epithelial Neoplasms: Precancerous Pathology and Treatment

1. Introduction An in situ epithelial neoplasm, frequently referred to in clinical practice as carcinoma in situ, represents a critical crossroads in oncological pathology. This classification describes a localized proliferation of highly abnormal, malignant-appearing epithelial cells that remain strictly confined to their tissue of origin. The defining biological characteristic of an in situ lesion is … Read more