CID, ISM / SCIENCE PHOTO LIBRARY CID, ISM / SCIENCE PHOTO LIBRARY
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Hidrocystoma on the lower eyelid of a 64-year-old man. This condition is an adenoma of the sweat glands, usually on the eyelids. An adenoma is a benign tumour of epithelial tissue originating in a gland. A hidrocystoma is also known as apocrine cystadenoma, Moll's gland cyst, and sudoriferous cyst.
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