Enfisema parafaríngeo tras fractura de la porción timpánica del hueso temporal. Descripción de un caso

Abstract

Introduction and objective: Facial trauma is a common reason for consultation and, although the presence of associated fractures is rare, it is sometimes necessary to perform imaging tests to help rule them out. The intimate relationship between the temporomandibular joint and the tympanic portion of the temporal bone explains that certain mandibular traumas are accompanied by fracture of the tympanic portion of the temporal bone. Description: We present the case of a 79-year-old male patient who, after suffering facial trauma, underwent a computed tomography scan that showed a fracture of the tympanic portion of the left temporal bone with ipsilateral parapharyngeal emphysema. Discussion: This type of fracture usually occurs in the context of mandibular trauma, in which the mandibular condyle impacts the anterior wall of the external auditory canal. Performing a computed tomography scan is essential for its diagnosis, and air can be observed around the temporomandibular joint and very rarely parapharyngeal emphysema. In the cases described in the literature, the attitude acquired in this type of situation is expectant. Conclusions: The complication of the fracture of the tympanic portion of the temporal bone in the form of parapharyngeal emphysema is very rare. However, despite its low incidence, in mandibular trauma the possible existence of associated fractures and their complications must be taken into account.