TY - CHAP M1 - Book, Section TI - Chapter 50. Cholesteatoma A1 - Chang, C.Y. Joseph A2 - Lalwani, Anil K. PY - 2012 T2 - CURRENT Diagnosis & Treatment in Otolaryngology—Head & Neck Surgery, 3e AB - Squamous epithelium in the middle ear or mastoidOtorrhea and conductive hearing lossRetraction of the tympanic membrane with a squamous debris collection or a whitish mass behind an intact tympanic membraneTesting includes computed tomography (CT) scanning, which can be useful in delineating disease extent but is not critical to making a diagnosis in most cases SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=55771372 ER -