Ion Channel Contributions to Wing Development in .

During morphogenesis, cells communicate with each other to shape tissues and organs. Several lines of recent evidence indicate that ion channels play a key role in cellular signaling and tissue morphogenesis. However, little is known about the scope of specific ion-channel types that impinge upon developmental pathways.

Retropharyngeal and parapharyngeal abscesses: Factors in medical management failure.

Retropharyngeal and parapharyngeal abscesses are the most common deep neck infections in the pediatric population. How best to treat these patients, be it intravenous antibiotics or immediate surgical incision and drainage, has long been debated. The purpose of this study was to evaluate patient and abscess characteristics associated with failure of medical treatment.

Retained dental needle migration across the skull base to the cochlea presenting as hearing loss.

Objectives: Long-term retained foreign bodies in the human body have been reported across many specialties, but relatively few exist in the ENT literature.

Patients: We present a case report of a patient with a broken dental needle fragment in the posterior oral cavity with subsequent migration to the cochlea over the course of 4 years, eventually leading to hearing loss. CT scan and middle ear exploration demonstrated a 4-cm metallic fragment abutting the base of the cochlea, immediately adjacent to the internal carotid artery.