What is a sinus tract? – An overview of the sinus tract

A sinus tract is an asymmetric passage that leads from the bones to the surface of the skin. This duct is also called a fistula. It may also be referred to as a drainage route from a deep focus of acute tissue and / or bone infection to an opening on the surface.

Infection or decompression of a synovial joint in rheumatoid arthritis or frequent fistula rheumatism can also lead to sinus formation.

When serious illness develops, the body retains the illness and prevents it from entering the bloodstream. The pus grows in the weak area. As it grows, a lean duct forms at the weak point. Over time, the duct reaches the surface of the skin where it bursts. If the pus bursts, the pressure is also relieved, so the patient has less pain and may not have a fever. Sometimes we find that an infection develops in a long bone and gets worse over the months. Ultimately, the infection enters the skin and forms a sinus.

A sinus tract is a small, uncharacteristic duct in the body. A tract usually runs from the cause of the infection to the surface of the skin. A sinus may develop after an abscess is removed (alone or with medical treatment), then one or more small openings (tracts) connect the cavity to the surface of the skin. In some cases, however, some people can develop a pilonidal sinus without ever having a pilonidal abscess.

Sometimes sinus drainage around the face and neck can be caused by chronic dental infections. Intraoral sinuses due to dental infections are common. Nasal dermoid sinus cysts are very common frontal median congenital masses, but are easily misinterpreted as sinusitis on clinical examination. The sinus pathways can be better demonstrated on magnetic resonance imaging. However, small areas can be difficult to find. T1-weighted images with intravenous gadolinium may be more sensitive if abscesses and smaller sinuses are found.

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