Squamous cell carcinoma is cancer that originates from which cells?

Squamous cell carcinoma is cancer that originates from which cells?

• A. Gland-forming tissue
• B. Flat squamous epithelial cells
• C. Basal epidermal cells
• D. Connective tissue

Answer: (B)

Squamous cell carcinoma arises from squamous epithelial cells, which are flat, scale-like cells that line surfaces such as the skin’s outer layer and the moist linings of many organs. When these squamous cells become cancerous, they form squamous cell carcinoma. The other tissue types correspond to different cancers: gland-forming tissue leads to adenocarcinoma, basal epidermal cells give rise to basal cell carcinoma, and connective tissue would produce a sarcoma. So the flat squamous epithelial cells are the correct origin for this cancer type.

Squamous cell carcinoma arises from squamous epithelial cells, which are flat, scale-like cells that line surfaces such as the skin’s outer layer and the moist linings of many organs. When these squamous cells become cancerous, they form squamous cell carcinoma. The other tissue types correspond to different cancers: gland-forming tissue leads to adenocarcinoma, basal epidermal cells give rise to basal cell carcinoma, and connective tissue would produce a sarcoma. So the flat squamous epithelial cells are the correct origin for this cancer type.