What is a characteristic appearance of squamous cell carcinoma?

Squamous cell carcinoma is characterized by raised, crusty, or warty-looking spots on the skin. This type of skin cancer originates from squamous cells, which are flat cells found on the surface of the skin. When squamous cells become cancerous, they often develop irregular surfaces and may be scaly or ulcerated, giving them a distinctive, rough appearance.

This characteristic appearance is important for early diagnosis, as recognizing the signs can lead to prompt treatment. The crusty nature of these lesions is due to the abnormal growth and accumulation of keratin, a protein that helps form the outer layer of the skin.

Smooth, flat lesions typically do not indicate squamous cell carcinoma; instead, they could represent benign conditions. Dark moles are more commonly associated with melanoma, another type of skin cancer, while small blisters may indicate different skin conditions or irritations. Understanding the specific features of squamous cell carcinoma helps estheticians and dermatology professionals identify and recommend appropriate referrals for further evaluation and treatment.