On routine examination, a 15-year-old's tympanic membrane shows a tiny white oblong mark just inferior to the umbo with no ear pain. What is this most likely?

On routine examination, a 15-year-old's tympanic membrane shows a tiny white oblong mark just inferior to the umbo with no ear pain. What is this most likely?

• A. A variant of normal
• B. Scarring of the tympanic membrane
• C. A cholesteatoma
• D. A foreign body

Answer: (B)

A small white patch on the tympanic membrane, especially just below the umbo, is classic for tympanic membrane scarring (tympanosclerosis). This arises from prior middle-ear inflammation and healing, leaving a chalky or fibrous scar on the membrane. In a teenager with no ear pain and presumably normal hearing, it’s an incidental, benign finding that doesn’t require treatment. It isn’t a cholesteatoma, which would appear as a keratinizing mass and often accompany other signs or symptoms, nor is it a foreign body.

A small white patch on the tympanic membrane, especially just below the umbo, is classic for tympanic membrane scarring (tympanosclerosis). This arises from prior middle-ear inflammation and healing, leaving a chalky or fibrous scar on the membrane. In a teenager with no ear pain and presumably normal hearing, it’s an incidental, benign finding that doesn’t require treatment. It isn’t a cholesteatoma, which would appear as a keratinizing mass and often accompany other signs or symptoms, nor is it a foreign body.