The spectrum of histopathologic patterns secondary to the topical application of EMLA® on vulvar epithelium: clinicopathological correlation in three cases.

EMLA(®) (eutectic mixture of local anesthetics, 2.5% each of lidocaine and prilocaine in an oil and water emulsion) is used as a topical anesthetic. We report three cases of EMLA(®) -induced histopathologic changes on the vulvar epithelium.

Lacrimal canalicular duct scarring in patients with lichen planus.

Background: Lichen planus (LP) is a mucocutaneous inflammatory disease that affects multiple sites, including the skin, oral cavity, vulva, and vagina and can result in scarring and stricture formation. It has also been shown to cause lacrimal canalicular blockage in a series of patients attending an ophthalmology clinic. We describe a cohort of women with vulvovaginal LP who also had signs of lacrimal canalicular scarring on examination.

Development of antigen-specific ELISA for circulating autoantibodies to extracellular matrix protein 1 in lichen sclerosus.

Lichen sclerosus is a common, acquired chronic inflammatory skin disease of unknown etiology, although circulating autoantibodies to the glycoprotein extracellular matrix protein 1 (ECM1) have been detected in most patients' sera. We have examined the nature of ECM1 epitopes in lichen sclerosus sera, developed an ELISA system for serologic diagnosis, and assessed clinicopathological correlation between ELISA titer and disease. Epitope-mapping studies revealed that lichen sclerosus sera most frequently recognized the distal second tandem repeat domain and carboxyl-terminus of ECM1.

Autoantibodies to extracellular matrix protein 1 in lichen sclerosus.

Background: Lichen sclerosus is a common acquired inflammatory disorder of skin and mucous membranes. The aetiology is unknown, although HLA-subtype susceptibility and high rates of other autoimmune disorders suggest that autoantibodies to specific mucocutaneous antigens are involved. The clinicopathological similarities between lichen sclerosus and lipoid proteinosis, which results from mutations in extracellular matrix protein 1 (ECM1), suggest this protein as an autoantigen.