Introduction External dacryocystorhinostomy (DCR) was first described by Toti in the early 20th century. The technique is applicable to patients complaining of tearing and demonstrating obstruction of the lacrimal outflow system. The procedure consists of creating a fistula for egress…
Introduction Acoustic neuroma, also known as vestibular schwannoma, is a benign neoplasm arising from the vestibular portion of the cochleovestibular nerve. This tumor can cause a variety of sequelae, most common among which are hearing loss, tinnitus, and dizziness The…
Introduction Superior semicircular canal dehiscence (SCD) syndrome was first described by Minor et al. in 1998; it consists of anatomic dehiscence of the superior semicircular canal accompanied by symptoms including dizziness, autophony, and hearing loss. The prototypical dizziness symptoms associated with…
Introduction Surgery for vertigo is typically a treatment of last resort, whether due to a peripheral or central etiology. The vast majority of patients may be managed conservatively with medical treatment and/or vestibular rehabilitation therapy. Critical to the management of…
Introduction Major head injuries can cause a variety of craniofacial fractures. Temporal bone trauma may occur as a result of blunt or nonpenetrating injury or a penetrating injury, such as gunshot wounds. The temporal bone contains several important structures, including…
Introduction Cerebrospinal fluid (CSF) leak of the temporal bone results from having a connection between the air-containing spaces of the temporal bone and the intracranial subarachnoid space. The connection is by way of defect(s) in the tegmen mastoideum or tegmen…
Introduction Benign lesions of the temporal bone present treatment challenges due to their central location among critical neurovascular structures. These lesions may remain undetected for years due to their insidious growth pattern and are often diagnosed incidentally by radiologic imaging.…
Video 142.1 , Video 142.2 , Video 142.3 Paraganglioma or glomus tumor is a tumor of the neuroendocrine system derived from neural crest cells and chemoreceptor cells. Although most tumors are sporadic, familial glomus tumors may occur in 20% of…
Introduction Resection of the temporal bone may be indicated as a component of management for advanced cancers of the parotid gland, peri-auricular skin, and neck, as well as primary lesions of the external auditory canal (EAC), middle ear, and mastoid.…
Video 140.1 , Video 140.2 , Video 140.3 , Video 140.4 , Video 140.5 , Video 140.6 , Video 140.7 , Video 140.8 , Video 140.9 , Video 140.10 , Video 140.11 , Video 140.12 , Video 140.13 , Video…