SCIMAT / SCIENCE PHOTO LIBRARY SCIMAT / SCIENCE PHOTO LIBRARY
Sebaceous cyst on the neck of a man makes hair cutting difficult and risky. The cysts are smooth to the touch, vary in size, and are generally round in shape. Sebaceous cysts form when the secretory (sebaceous) glands associated with hair follicles become blocked. The cyst may easily be removed (excised) by surgery.
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