IRRITATION FIBROMA
IRRITATION FIBROMA ICD-10: M8810/0
• This is a submucosal nodular scar, occurring at a site of recurrent trauma (Fig. 33-22).
• Findings: Sessile or pedunculated, well-demarcated nodule, usually 2 cm in diameter (may be large if neglected). Normal color of the mucous membrane to pink-red; firm to hard.
• Location: Buccal mucosa along bite line; tongue, gingiva, and labial mucosa.
• Synonym: Bite fibroma.
• Treatment: None. If patient is uncomfortable, excise.
FIGURE 33-22 • Irritation fibroma: Lower lip A 58-year-old female with a lesion on the lip for 10 years. She frequently bites it when chewing. There is a rubbery pink nodule at the reflection of the labial mucosa.