White sponge nevus

Since the condition is benign and usually asymptomatic, treatment is generally not required. For patients experiencing mild discomfort or sensitivity, avoiding irritants such as spicy foods, acidic beverages, and tobacco can help reduce inflammation. Over-the-counter oral gels or rinses may be used for temporary relief, but there is no cure to eliminate the patches. Regular dental check-ups are recommended to monitor the oral health and rule out other concurrent issues.

Diagnosis is often clinical based on the characteristic appearance of diffuse, white, corrugated patches on the buccal mucosa, lips, or tongue. However, because it can resemble lichen planus, leukoplakia, or candidiasis, a biopsy is frequently performed to confirm the diagnosis. Histological examination reveals hyperkeratosis and acanthosis without dysplasia, which distinguishes it from potentially premalignant conditions like leukoplakia.

No, white sponge nevus is a benign, non-neoplastic condition caused by a genetic mutation in the keratin 4 or 13 genes. It is not associated with immune deficiency, viral infections, or an increased risk of developing oral cancer. The thickened, white, sponge-like patches are purely structural changes in the mucosal lining and do not transform into malignant tissue.

White sponge nevus is not contagious. It is an autosomal dominant genetic disorder, meaning it is inherited from parents rather than transmitted through contact, saliva, or shared utensils. Family members may have the condition if they inherited the same genetic mutation, but they cannot contract it from an affected individual. Genetic counseling may be offered to families with a known history of the condition.