A 73-year-old man suffered from a mucinous carcinoma of the skin which located on the lower abdomen and underwent a wide excision.
Histopathologically, the tumor was divided into numerous compartments which had abundant amounts of mucin and small islets of tumor cells.
The immunohistochemical findings, including cytokeratin expression, ruled out mucinous carcinomas originated from other organs. On the right lung, the computed tomogram showed a coin lesion of about 10mm in size which was suspicious as a metastasis and which had no change in size and number during the follow-up period.
