White sponge nevus

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White sponge nevus

Synonyms: Hereditary mucosal leukokeratosis | White sponge nevus of Cannon

White sponge nevus (WSN) is a rare and autosomal dominant genetic disease in which the oral mucosa is white or greyish thickened folded and spongy. The onset is early in life and both sexes are affected equally. Other common sites include the tongue floor of the mouth and alveolar mucosa.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.

Reference: Access aggregated data from Orphanet at Orphadata.

Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version February 2024

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White sponge nevus?

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Advocacy Organizations

My Faulty Gene

My Faulty Gene is a nonprofit organization which provides information and assistance to any individual whose family medical history suggests genetic testing might be helpful in identifying an increased risk of disease due to a genetic mutation. We believe that everyone in need of genetic testing should have access to it.

My Little Sunshine Foundation

My Little Sunshine is a non-profit foundation dedicated to educating people about the importance of fertility preservation and making fertility resources accessible to all.


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Clinical Trials

For a list of clinical trials in this disease area, please click here.