Lupus erythematosus, especially the discoid form, and lichen planopilaris may be associated and can occur in different topographies (coexistence) or in the same lesion (lupus eythematosus/lichen planus overlap syndrome). Frontal fibrosing alopecia is considered a variant form of lichen Received: October 24, 2016 Accepted: October 27, 2016 Published online: November 12, 2016 Leandro Noriega Derm...

Empirical critical loads (CL) for N deposition were determined from changes in epiphytic lichen communities, elevated NO(3)(-) leaching in streamwater, and reduced fine root biomass in ponderosa pine (Pinus ponderosa Dougl. ex Laws.) at sites with varying N deposition. The CL for lichen community impacts of 3.1 kg ha(-1) year(-1) is expected to protect all components of the forest ecosystem fro...

Lichen planus is an inflammatory disease of unknown etiology which may affect the esophagus. Patients with esophageal lichen planus are usually elderly women. The most frequent symptoms are dysphagia and odynophagia. There is usually concomitant oral involvement in cases of esophageal lichen planus. Endoscopic findings include erosions, exudates and stenosis. Systemic steroids are the most effe...

Introduced reindeer, Rangifer tarandus, overexploited lichen-rich plant communities on St. Matthew Island in the Bering Sea. A die-off of the reindeer followed, exacerbated by extreme weather in 1964, resulting in extirpation of the reindeer. A similar pattern of removal of lichens as major components of plant communities has occurred following introductions of reindeer to other islands at high...

OBJECTIVE To report clinical features, response to treatment, and long-term follow-up of nail lichen planus in children. DESIGN Retrospective study involving 15 children with nail lichen planus. SETTING Outpatient consultation for nail disorders at the Department of Dermatology of the University of Bologna, Bologna, Italy. PATIENTS OR OTHER PARTICIPANTS We diagnosed nail lichen planus in ...

The evaluation of air quality is an important topic. It is well known that lichens have a set of characteristics that make them well suited for biomonitoring purposes. Sampling lichen diversity is not as expensive as chemical analysis and for this reason a dense sampling grid is possible thus reducing the costs of analysis. Lichen diversity can be used to identify more disturbed areas, resultin...

Objective: To compare the characteristics of Blaschkoian lichen planus with typical lichen planus. Patients and methods In this case series, we diagnosed 7 patients of Blaschkoian lichen planus (3 males and 4 females) based on specific clinical presentation, histopathological findings and exclusion of other dermatologic disease mimicking Blaschkoian lichen planus. Results Of 7 patients, 4 (57.1...

OBJECTIVE Hepatitis C virus (HCV) is one of the major causes of chronic liver disease worldwide but its morbidity is also due to a variety of extra-hepatic manifestations including mixed cryoglubulinemia, non-Hodgkin lymphoma, diabetes, porphyria cutanea tarda and lichen planus. The aims of this study were to conduct a systematic review and a meta-analysis on the prevalence of HCV in lichen pla...

Nineteen species of mostly epiphytic lichens from the forests of Nowshahr and Royan located in Mazandaran province (N Iran) are reported. Three species, Ochrolechia pallescens, Phaeophyscia confusa and Usnea longissima, are newly reported for lichenized mycota of Iran and seven species are new to the province. Additionally, a short history of lichenological exploration in the Hyrcanian forest i...

The aim of this study was to investigate metabolites of the lichen Laurera benguelensis. A high-performance liquid chromatographic (HPLC) method has been developed for the characterization of xanthones and anthraquinones in extracts of this lichen. Lichexanthone, secalonic acid D, norlichexanthon, parietin, emodin, teloschistin and citreorosein were detected in the lichen samples, which were co...