Like basal cell carcinoma, squamous cell carcinoma is usually present in sun-exposed areas of the skin, can appear quickly, bleed, be sore and may not heal.Unlike basal cell carcinoma, squamous cell carcinoma looks more like a red, crusted lesion.Sometimes the spot can have an ulcer (sore) in the middle that doesnât heal. It can appear anywhere on the body.nlike basal cell carcinoma, squamous cell carcinoma looks more like a red, crusted lesion. Sometimes the spot can have an ulcer (sore) in the middle that doesnât heal. It can appear anywhere on the body.