White Sponge Nevus of the Mucosa (Naevus Spongiosus Albus Mucosae)

Hereditary benign intraepithelial dyskeratosis: case report

“…Although the oral features of HBID are remarkably similar to those of white sponge nevus, in the latter no eye lesions are observed. Furthermore, in white sponge nevus external genitalia and rectum are also affected 6,7 …”

White Sponge Nevus with Epidermolytic Changes

“…White sponge nevus [7] has an autosomal dominant inheritance; it may be present at birth or may appear in childhood. It is clini cally characterized by thick, sponge-like plaques involving extensive areas of the oral mucosa.…”

Oral Squamous‐Cell Carcinoma within a White‐Sponge Nevus

“…Histopathological examination shows a distinctive “basket‐weave” pattern of the epithelial cells ,. The other form, designated the Cannon type, is familial and was originally described by Cannon in 1935 . In the latter form occasional signs of slight dyskeratosis may be seen in the prickle‐cell layer.…”

“…There are usually no symptoms. The condition tends to be benign and does not respond to any treatment ,,,…”