Epidermoid and dermoid cysts are the most common cysts of the skin. They consist 1.6-6.9% of all head and neck cysts, usually located in orbita, oral and nasal cavity [1-3], less than 0.01% of oral cavity cysts [4]. They are usually small cysts, rarely reach over 5 cm in diameter [5]. Differential diagnosis of cervical epidermoid cysts includes thyroglossal cyst, dermoid cyst, inclusion cyst, b...

OBJECTIVES/HYPOTHESIS The aim of this study was to evaluate the indications for, and outcomes and limitations of, OK-432 therapy in various otolaryngological cystic diseases. STUDY DESIGN A retrospective clinical study at Yamagata University School of Medicine and the Fukase Clinic in Japan. METHODS Between April 1996 and November 2009 we tried OK-432 therapy in 148 patients with otolaryngo...

Intrathyroidal lymphoepithelial cysts are rare, and only 15 such cases have been reported. Although sonography has been performed in some cases, the findings have not been discussed previously. Despite its rarity, the sonographic appearances of this lesion are similar to those of other commonly encountered congenital cystic lesions in the head and neck, such as thyroglossal duct cysts and secon...

Epidermoid cysts are lesions, which form as a result of implantation of the epidermis in the layers of the dermis or the mucous membrane. The lesions are rare in adults with 7% occurring in the head and neck area and most often located in the submental region. In children population submental epidermoid cysts are extremely rare. The differential diagnosis of the lesions is necessary as it affec...