An exceedingly rare autosomal dominant disorder reported in only a few patients to date with characteristics of dacryocystitis due to lacrimal canal stenosis and osteopoikilosis (demonstrated radiologically as discrete spherical osteosclerotic lesions of 2-10 mm in diameter).

Congenital nasolacrimal drainage system impatency is relatively common, occurring in approximately 20% of children within the first year of life. Such infants typically manifest persistent epiphora and/or recurrent infections of the lacrimal pathway such as conjunctivitis. The most frequent site of such obstruction occurs at the distal intranasal segment of the nasolacrimal drainage system at the valve of Hasner (summary by Wang and Cunningham, 2011). Congenital dacryocystocele, an uncommon variant of nasolacrimal duct obstruction, characterized by the appearance of a cystic blue mass over the area of the lacrimal duct soon after birth. Dacryocystoceles are thought to result from a persistent membrane at the valve of Hasner and a functional obstruction of the common canaliculus or valve of Rosenmuller. The resulting lacrimal sac distention has been reported to be more common in female and non-Hispanic white patients, and familial cases have been described only sporadically. Common presenting signs include dacryocystitis, facial cellulitis, and respiratory distress; the development of astigmatism in association with dacryocystocele has only rarely been observed (summary by Shekunov et al., 2010).

An EEC syndrome characterized by autosomal dominant inheritance that has material basis in variation in the chromosome region 7q11.2-q21.3.

The TP63-related disorders comprise six overlapping phenotypes: Ankyloblepharon-ectodermal defects-cleft lip/palate (AEC) syndrome (which includes Rapp-Hodgkin syndrome). Acro-dermo-ungual-lacrimal-tooth (ADULT) syndrome. Ectrodactyly, ectodermal dysplasia, cleft lip/palate syndrome 3 (EEC3). Limb-mammary syndrome. Split-hand/foot malformation type 4 (SHFM4). Isolated cleft lip/cleft palate (orofacial cleft 8). Individuals typically have varying combinations of ectodermal dysplasia (hypohidrosis, nail dysplasia, sparse hair, tooth abnormalities), cleft lip/palate, split-hand/foot malformation/syndactyly, lacrimal duct obstruction, hypopigmentation, hypoplastic breasts and/or nipples, and hypospadias. Findings associated with a single phenotype include ankyloblepharon filiforme adnatum (tissue strands that completely or partially fuse the upper and lower eyelids), skin erosions especially on the scalp associated with areas of scarring, and alopecia, trismus, and excessive freckling.

Lacrimoauriculodentodigital syndrome-1 (LADD1) is a multiple congenital anomaly disorder mainly affecting lacrimal glands and ducts, salivary glands and ducts, ears, teeth, and distal limb segments (summary by Rohmann et al., 2006). Genetic Heterogeneity of Lacrimoauriculodentodigital Syndrome LADD syndrome-2 (LADD2; 620192) is caused by mutation in the FGFR3 gene (134934) on chromosome 4p16, and LADD syndrome-3 (LADD3; 620193) is caused by mutation in the FGF10 gene, an FGFR ligand, on chromosome 5p12.