Scalp and Skin
Keywords basal cell carcinoma, squamous cell carcinoma, melanoma, scalp, skin The skin, by surface area, is the largest organ in the human body. In its role as a barrier…
Nasal Cavity and Paranasal Sinuses
Keywords Nasal cavity, paranasal sinus, endoscopic, maxillectomy, orbit Malignancies of the sinonasal tract are rare. They account for less than 10% of head and neck cancers, with an annual…
Eyelids and Orbit
Keywords orbit, eyelids, oculoplastic surgery, exentration, orbitectomy Although they are relatively rare, tumors that involve the eyelids and orbit are a therapeutic challenge because of the complex anatomy and…
Basic Principles of Head and Neck Surgery
Keywords preoperative, postoperative, surgical planning, surgical technique, operating room Because most patients with tumors of the head and neck initially present to the surgeon, it is the surgeon’s responsibility…
Introduction
Keywords head and neck cancer, epidemiology, etiology, staging Anatomically and histologically, the head and neck region is one of the most diverse and complex parts of the human body….
Ocular sarcoidosis
Overview Sarcoidosis (from the Greek, meaning “tumor-like”) is a systemic inflammatory condition that may affect many organs. Its hallmark is the noncaseating granuloma, a nonspecific but highly suggestive pathologic finding….
Infectious uveitis
Overview Uveitis can be infectious or noninfectious in origin. Although the most common etiology of uveitis is considered to be immune-mediated in developed countries, there remain many cases of uveitis…
Immunologic mechanisms of uveitis
Overview A deeper appreciation of the pathogenic mechanisms underlying uveitis, or intraocular inflammation involving the uveal tract (i.e., iris, ciliary body, choroid), has contributed to our abilities to treat these…
