Our purpose in this communication is to report a new type of pedicle flap operation to be used in the epitheliation of the radical mastoidectomy cavity. This graft, in our opinion, is especially valuable in cases in which previous mastoidectomy has been performed and there is lack of epidermis. This variation in the technic, as far as we can ascertain by a careful search of the literature, has not previously been reported.The aim in the treatment of chronic suppurative otitis media, with or without cholesteatoma, is the production of a dry ear. If all attempts at conservative treatment fail, radical mastoidectomy is often employed. At times the radical surgical treatment must be carried out as an emergency procedure to forestall the development of intracranial complications or because of symptoms of labyrinthine involvement.One of the disadvantages of the radical operation is that even after its performance the surgeon is unable to assure his patient that a dry ear will be obtained. Many factors are responsible for this, which it is not within the province of this paper to discuss.It has been shown that healing in cases of chronic suppurative otitis media is in direct relation to the extent of epidermization by squamous epithelium, which is ectodermal in origin. This mechanism in the middle ear differs from the process of healing in other parts of the body. Elsewhere healing takes place by means of mesodermal tissue, which eventually becomes mature fibrous connective tissue. Squamous epithelium is nature's means of healing the middle ear. The cholesteatoma matrix is formed of squamous epithelial cells and is an attempt at healing. The foremost exponents of this theory have been