MUCINOUS CARCINOMA OF SKIN

This type of carcinoma is most common on the head or neck, particularly the eyelids. The recurrence or persistence rate is high, but metastatic behavior is uncommon.

If one is confronted with a case having the features of a primary mucinous carcinoma of skin, one is obligated to search for a primary elsewhere, particularly if the location is not on the head or neck. Mucinous carcinomas (colloid carcinomas) from the gastrointestinal tract, ovary, and breast can metastasize to skin.

Scan power view.

Low power view of above. Clumps of cells, some having a papillary configuration are floating in a pool of mucus.

High power view of above. The tumor cells are relatively uniform in appearance. They have a few apocrine features in this picture, but there is evidence that these may be of eccrine derivation.

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	Scan power view.
	Low power view of above. Clumps of cells, some having a papillary configuration are floating in a pool of mucus.
	High power view of above. The tumor cells are relatively uniform in appearance. They have a few apocrine features in this picture, but there is evidence that these may be of eccrine derivation.