NURSING ANM AND GNM

Detailed explanation-1: -Cholesteatoma is a confusing misnomer which means fatty bile tumor; however, cholesteatomas are benign collections of keratinized squamous epithelium within the middle ear. There are two major types of middle ear cholesteatomas, congenital and acquired.

Detailed explanation-2: -A cholesteatoma consists of squamous epithelium that is trapped within the middle ear space; it can erode and destroy vital structures within the temporal bone. Epitympanic (attic) cholesteatoma.

Detailed explanation-3: -Cholesteatoma is a skin-lined cyst that begins at the margin of the eardrum and invades the middle ear and mastoid (arrow). This photograph shows a typical cholesteatoma that has eaten into the bone, wrapped around the incus (hearing bone), and collected layers of dead skin.

Detailed explanation-4: -The pinna is keratinized, stratified squamous epithelium skin on it. It is made of subcutaneous fibroconnective tissue, elastic fibrocartilage, and fat.[9] The external auditory canal also has keratinized stratified squamous epithelium that covers the external tympanic membrane as well.