Basal cell carcinoma (rodent ulcer)

Basal cell carcinomas are the most common malignant skin tumour and most relate to excessive sun exposure. They are common later in life on exposed sites although rare on the ear. They can present as a slow-growing papule or nodule (or rarely be cystic) which may go on to ulcerate. Telangiectasia over the tumour or a skin-coloured jelly-like 'pearly edge' may be seen. A flat, diffuse superficial form exists and an ill-defined 'morphoeic' variant. Basal cell carcinomas will slowly grow and erode structures if untreated but these tumours almost never metastasize.

Treatment of rodent ulcer (Basal cell carcinoma)

This is usually with surgical excision although radiotherapy can be useful for large superficial forms. Curettage may occasionally be used in older patients, although not for central facial lesions as they often recur. Very superficial lesions may be treated with cryotherapy but follow-up is advised.

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