Hereditary benign intraepithelial dyskeratosis (HBID) is a rare inherited disease characterized by elevated plaques on the ocular and oral mucous membranes. Hereditary benign intraepithelial dyskeratosis is a rare autosomal dominant disease of the conjunctiva and the oral mucosa caused by a duplication of. Context.—Hereditary benign intraepithelial dyskeratosis (HBID) is a rare autosomal dominant disorder characterized by elevated epibulbar and oral plaques.

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Significant inferior conjunctival injection, and corneal vascularization and opacification of the previous penetrating keratoplasty are noted OS C.

C ] – Thick soft white papules and plaques of variable size may be in any part of oral cavity [UMLS: A Comprehensive Atlas and Text.

Sign in to make a comment Sign in to your personal account. They observed that cells in affected HBID patients had a shift in differentiation toward keratinization.

Palate Bednar’s aphthae Cleft palate High-arched palate Palatal cysts of the newborn Inflammatory papillary hyperplasia Stomatitis dyskegatosis Torus palatinus.


Analysis of DNA sequence variants detected by high-throughput sequencing. Hereditary benign intraepithelial dyskeratosis, NLRP1segment duplication. Hereditary dyskeratosis of the perilimbal conjunctiva.

The eye lesions occur bilaterally and involve the interpalpebral conjunctiva; in the mouth there are alterations of the buccal mucosa. The patient also had a history of congenital bilateral sensorineural hearing loss, for which he began wearing hearing aids at 1 year of age.


Hereditary benign intraepithelial dyskeratosis is a rare [1] autosomal dominant disease of the conjunctiva and the oral mucosa caused by a duplication of chromosome 4q OMIM is intended for use primarily by physicians and other professionals concerned with genetic disorders, by genetics researchers, and by advanced students in science and medicine. We need long-term secure funding to provide you the information that you need at your fingertips.

Intraoral incisional biopsy revealed increased epithelial thickness, hyperplasia, and acanthosis, with numerous large vacuolated cells throughout the epithelium. Most commonly, neovascularization develops superficially, but involvement of the mid to deep stroma has been reported [15]. Eye Conjunctiva Hereditary benign intraepithelial dyskeratosis Author: Diffuse bulbar conjunctival injection was noted, associated with elevated foci of epithelial thickening and keratinization overlying the limbus Figure 1.

Hereditary Benign Intraepithelial Dyskeratosis – EyeWiki

J Oral Pathol Med. This page was last modified on December 20,at Examination of her mother revealed dilated vessels and a beign gelatinous plaque on the dyskeraotsis conjunctiva; a maternal uncle and the maternal grandmother also had dilated vessels and superficial gelatinous plaque on the bulbar conjunctiva, as well as white papules on the buccal mucosa.

A duplication in chromosome 4q35 is associated with hereditary benign intraepithelial dyskeratosis. Cells with homogenously dense orange cytoplasm and sometimes pyknotic nuclei.

They studied 2 large families in North Carolina, one of which was originally studied by Carl Witkop, D. The oral lesion, which grossly resembles leukoplakia, is not precancerous. Hereditary benign intraepithelial dyskeratosis Dyskeratosiz. Hereditary benign intraepithelial dyskeratosis HBID is a rare autosomal dominant disorder characterized by elevated epibulbar and oral plaques and hyperemic conjunctival blood vessels.


Hereditary benign intraepithelial dyskeratosis: an evaluation of diagnostic cytology.

Using quantitative PCR, they also ruled out the duplication 4q35 in the affected patients [9]. A bonus to all MIMmatch users is the option to sign up for updates on new gene-phenotype relationships.

Retrieved from ” http: Von Sallmann and Patonstudied members of a large, triracial, consanguineous North Carolinian isolate population, so-called ‘Halowar Indians,’ who had dyskeratosis of the conjunctival epithelium. They suggested that a duplication is involved in the causation of the disorder.

Nasopalatine duct Median mandibular Median palatal Traumatic bone Osteoma Osteomyelitis Osteonecrosis Bisphosphonate-associated Neuralgia-inducing cavitational osteonecrosis Osteoradionecrosis Osteoporotic bone marrow defect Paget’s disease of bone Periapical abscess Phoenix abscess Periapical periodontitis Stafne defect Torus mandibularis.

Ultrastructural study of hereditary benign intraepithelial dyskeratosis. Ryskeratosis mucosal biopsy showed thickening of the epithelium, prominent dyskeratosis with decreased cell-cell adhesion in the superficial layers, and a cell-within-cell pattern of epithelial cells engulfed by other normal cells.