An abnormal channel originating deep within tissues and extending to the epithelial or mucosal surface is known as a(n):

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Quizplus · Accepted Answer

A sinus tract is an abnormal channel originating deep within tissues and extending to the epithelial or mucosal surface. Ulcers are areas of tissue damage or loss on the surface of the skin or mucous membranes, but they do not involve a deep channel. Fibroepithelial polyps and parulis are growths or masses that do not involve a channel.

An Abnormal Channel Originating Deep Within Tissues and Extending to the Epithelial