An unusual presentation of colorectal carcinoma.

The skin is rather an unusual site of metastasis from carcinoma of the rectum. When the skin is involved, it tends to be part of the picture of widespread terminal malignant disease. Consequently, survival after the appearance of skin metastases is usually short. It is uncommon for skin metastases to be a presenting feature, and especially so if the involved skin is on the distal part of a limb. We would, therefore, like to present such a case.