Primary mucinous adenocarcinoma of the eyelid.

Primary mucinous adenocarcinoma of the skin is a rare entity arising from eccrine sweat glands with a propensity for local recurrence and metastasis. This tumor has been widely reported in the ophthalmology literature, but not to our knowledge in the otolaryngology literature. A case of a 48-year-old man with a mucinous adenocarcinoma extensively involving the right eyelid and orbit necessitating craniofacial resection is presented together with a discussion of the pathology, clinical features, and management.