A channel through the involucrum that may connect to a sinus and allow migration of pus and bloody bone debris onto the skin surface describes a __________.

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A channel through the involucrum that connects to a sinus is known as a cloaca. This can allow pus and bloody bone debris to migrate onto the skin surface, causing drainage and potential infection. Sequestra refers to fragments of dead bone that have separated from the living bone. A gibbous formation is a rounded swelling, often seen in reference to the moon's shape. A gumma is a soft, non-cancerous growth that can occur in the tissues of the body, often in response to syphilis infection.

A Channel Through the Involucrum That May Connect to a Sinus