No abstract

Two hundred consecutive patients with solar keratoses (SK) seen in a private dermatology practice had on average 61.9 SK compared with eight reported in the general population. Non-melanoma skin cancer was present in 41% of patients and 17% had squamous cell carcinoma (SCC). The ratio of basal cell carcinoma to SCC in the cohort was 1.7:1. The commonest site of SK was the upper limbs but the greatest density of lesions was on the face, particularly the nose. Squamous cell carcinomas were most commonly found on the upper and lower limbs. Basal cell carcinomas were most common on the head and neck.

A case of coexisting lymphangiosarcoma and Kaposi's sarcoma that occurred in a female renal transplant recipient is presented. Both sarcomas were localized to the skin and were slowly progressive over several years. The coexistence of these two sarcomas may indicate that they arose from a common precursor endothelial cell and that systemic immune suppression may be important in the pathogenesis of both these malignancies. Cancer 68:2330–2335, 1991.