<unk>  (also termed a parulis and commonly, a gumboil) is an oral lesion characterized by a soft erythematous papule (red spot) that develops on the alveolar process in association with a non-vital tooth and accompanying<unk>  abscess. A parulis is made up of inflamed granulation tissue. Less commonly,<unk>  infections drain onto the surface of the skin, forming a cutaneous sinus of<unk>  origin.
Intraoral dental sinus
Protruding ear
Median mandibular cyst
Preauricular sinus and cyst
Nasal septal hematoma
Nasal septal abscess
Laryngeal cleft
Midline cervical cleft