Dermal sinus tracts represent congenital anomalies resulting from aberrant neurulation, often manifesting as small cutaneous openings along the midline of the back. These tracts can extend deeply to ...

Cutaneous dental (or odontogenic) sinus tracts are uncommon occurrences in which a channel forms from a dental focus of infection to a drainage site on the skin of the face or neck. Odontogenic sinus ...

Hidradenitis suppurativa stage 3 is the most advanced form of the skin condition. Symptoms include widespread abscesses, scarring, and tunneling wounds called sinus tracts. Hidradenitis suppurativa ...

In some cases, secondary infections, rare complications, and painful, severe symptoms may warrant an emergency visit. Painful bumps, cysts, abscesses, and tunnels of infection under the skin (sinus ...