Differences Between Squamous Cell Carcinoma and Adenocarcinoma
Disease description:
My aunt (my mother’s sister-in-law) was previously hospitalized for ovarian cancer, and I visited her. In the same ward were two other patients—one with squamous cell carcinoma and the other with adenocarcinoma. I’m not very familiar with these terms—what is the difference between squamous cell carcinoma and adenocarcinoma?
Doctor's answer (1)
Dr. Ren Xiaoping
The distinction between squamous cell carcinoma and adenocarcinoma lies in their cells of origin. Squamous cell carcinoma is a malignant tumor arising from infection-induced transformation of squamous epithelial cells in the cervix, whereas adenocarcinoma is a malignant tumor resulting primarily from malignant transformation of glandular epithelial cells. Adenocarcinoma tends to grow more rapidly and follows a shorter clinical course, while squamous cell carcinoma typically progresses more slowly and has a longer clinical course. Distant metastasis commonly occurs early in the course of adenocarcinoma, whereas distant metastasis in squamous cell carcinoma usually develops later. These are the key differences between squamous cell carcinoma and adenocarcinoma.
