Piepergerdes MC, Kramer BM, Behnke EE: Keratosis obturans and external auditory canal cholesteatoma. Laryngoscope 1980, 90: 383-391.
Ahren C, Thulin C-A Lethal Intracranial complications following inflammation in the external ear canal in treatment of serous otitis media and due to defects in the petrous bone Acta Otolaryngol 1965; 60: 407-421.
Lundy LB, Graham MD, Kartush JM et al. Temporal bone encephalocele and cerebrospinal fluid leaks Am J Otol 1996; 17: 461-469.
Brookes GB, Graham MD Post-traumatic cholesteatoma of the external auditory canal Laryngoscope 1984, 94: 667-670.
Rouev P, Edrev G, Hristova R, Frengov V, Vasilev V Case reposrt of keratosis obturans Transport Medicine 2002; 24: 54-56.
Persaud RA, Hajioff D, Thevasagayam MS, Wareing MJ, Wright A: Keratosis obturans and external ear canal cholesteatoma: how and why we should distinguish between these conditions. Clin Otolaryngol Allied Sci 2004, 29: 577-581.
Bharadwaj VK, Walling KE, Rees J et al. Necrosis and sequestration in the tympanic part of the temporal bone J Otolaryngol 1984; 13: 299 – 304.
Naiberg J, Berger G, Hawke M: The pathologic features of keratosis obturans and cholesteatoma of the external auditory canal. Arch Otolaryngol 1984, 110: 690-693.
Naim R, Linthicum F Jr., Shen T, Bran G, Hormann K: Classification of the external auditory canal cholesteatoma. Laryngoscope 2005, 115: 455-460.
Hartley C, Birzgalis AR, Hartley RH, Lyons TJ, Farrington WT External ear canal cholesteatoma, case report Ann Otol Rninol Laryngol 1995; 104: 868 – 870.
Holt JJ Ear canal cholesteatoma Laryngoscope 1992; 102: 608-613.
Saunders NC, Malhotra R, Biggs N, Fagan PA. Complications of keratosis obturans. J Laryngol Otol. 2006 Sep; 120(9): 740-4.
Sapci T, Ugur G, Karavus A, Agrali N, Akbulut UG Giant cholesteatoma of the external auditory canal Ann Otol Rninol Laryngol 1997; 106: 471-473.
Vrabec JT, Chaljub G: External canal cholesteatoma. Otol Neurotol 2002, 23: 241-242.
Tos M Cholesteatoma of the external acoustic canal In Manual of middle ear surgery vol 3 Surgery if the external auditory canal Thieme; 1997: 205-209.
Makino K, Amatsu M: Epithelial migration on the tympanic membrane and external canal. Arch Otorhinolaryngol 1986, 243: 39-42.
Farrior J: Cholesteatoma of the external ear canal. Am J Otol 1990, 11: 113-116.
Bonding P, Ravn T. Primary cholesteatoma of the external auditory canal: is the epithelial migration defective? Otol Neurotol. 2008 Apr; 29(3): 3 34-8.
Naim R, Riedel F, Gotte K et al. Co-expression of different angiogenic factors in external auditory canal cholesteatoma Acta Otolarygologica 2004; 124:5.
