A 43-year-old man with generalized lichen planus demonstrated serum antibodies against autologous lesional skin. Indirect immunofluorescence using serum and papular lesional skin revealed a lichen planus specific antigen found only in the granular layer. The specific tissue antigen was not detected in normal skin from this patient, in normal skin from patients with skin disorders other than lic...

Ulcerative lichen planus of the feet is a rare variant of lichen planus. We report a case presenting with chronic painful ulceration of the feet and cicatricial changes of the toenails. The pathology of the ulceration showed diagnostic of lichen planus. She also had typical lichen planus on the dorsal hands. The ulceration was resistant to many kinds of topical agents, but completely healed wit...

Dysphagia is not uncommon in gastroenterology practice. The differential diagnosis is wide and includes both mechanical and motility causes. Esophageal lichen planus is uncommon but now increasingly recognized. It occurs in more than half of cases of lichen planus with muco-cutaneous involvement. Often there is a delay in diagnosis and subsequent treatment. The endoscopic picture of esophageal ...

Shared Workspaces are getting more and more popular in helping people collaborate. However, it’s difficult for user to search information across different Shared Workspaces since they are currently islands that are not interlinked. Based on semantic web technologies, SIOC provide ontology and tools to interlink online communities. By using SIOC to develop an explorer for Shared Workspaces, we m...

This paper describes how we extended the SIOC ontology to take into account particular aspects of wikis in order to enable integration capabilities between various wiki systems. In particular, we will overview the proposed extensions and detail a webservice providing SIOC data from any MediaWiki instance, as well as related query examples that show how different wikis, designed as independant d...

The crude extract contains many compounds along with the various lichen metabolites and it is very difficult to say which compound(s) has the antioxidant potential unless and until it is purified. In the previous Chapter 3 & 4 the biological activities of Usnea ghattensis attributed to the crude extract containing usnic acid and norstictic acid have been presented. In order to know the antioxid...

Lichen planus is an uncommon disease in children, and only 2 to 3% of affected patients are under twenty years of age. This dermatosis may appear in several clinical forms, which vary according to the morphology and distribution of lesions. In less than 0.2% of all lichen planus cases, the lesions are distributed along the lines of Blaschko, and is a variant called linear lichen planus. This is...

References 1. Daoud MS, Pittelkow MR. Lichen planus. In: Goldsmith LA, Katz SI, Gilchrest BA, Paller AS, Leffell DJ, Wolff K, editors. Fitzpatrick’s Dermatology in General Medicine. 8th ed. New York: McGraw-Hill; 2012. p. 296-312. 2. Weedon D. Weedon’s Skin Pathology. 3rd ed. London: Churchill Livingstone Elsevier; 2010. 3. Hanau D, Sengel D. Perforating lichen planus. J Cutan Pathol 1984;11:17...

PURPOSE To describe a case of cicatricial keratoconjunctivitis associated with lichen planus. METHODS Case report. RESULTS To our knowledge, this is the sixth reported case of cicatricial keratoconjunctivitis associated with lichen planus. A 73-year-old woman had persistent cicatricial keratoconjunctivitis. Histopathologic studies of the buccal mucosa biopsy specimen revealed lichen planus....

oral lichen planus is diagnosed according to clinical and histopathological characteristics.some times all of the classical  histopathological features can not be seen.in some articles the presence of mast cells have been noted below the epithelium of oral lichen planus patients.the following study was done to evaluate the number of mast cells in the histopathological sections of 20 oral lichen...