Describe the features of basal cell carcinoma.?

Non-healing ulcer. Basal cell carcinoma may present as an indolent, non-healing ulcer with spread to contiguous tissues. There may be nodules, pigment changes, bleeding and tissue destruction.
Common skin cancer. Basal cell carcinoma is the most common of all skin cancers. It is caused by excessive sun exposure over time. It is usually slow growing and painless unless it becomes quite large. Although it rarely spreads it can be very destructive and is usually treated by surgical removal.
Variable. Can be raised, translucent, with or without a central depression &or little red veins or flat flaky crusty with indistinct margins that heals & breaks back down.
Depends on subtype. Solitary pearly nodule with rolled border, with small overlying blood vessels (telangiectasias), often ulcerated, bleeds easily. The lesions are normally found on sun-exposed areas such as the face and arms. The tumors are slow-growing, non-aggressive, and they rarely metastasize. Common basal cell carcinoma subtypes include: nodular, superficial, pigmented, infiltrative, & sclerosing.
Basal Cell Cancer. Basal cell carcinoma (aka bcc or rodent ulcer) is the most common type of skin cancer and may present in a variety of forms: nodular (or nodulo-cystic), ulcerating, sclerosing, multi-centric and pigmented (higher incidence in darker complected individuals). It is most commonly associated with extensive sun exposure. Spread is by local invasion of neighboring tissues. Treatment is primarily surgery.