Polymorphous light eruption is classified as an immune-mediated photodermatosis. It the most common cause of photosensitivity in children between 6 and 14 years old. characterised by pruritic or tingling erythematous papular plaque lesions sunlight-exposed skin which occur spring early summer. The first signs polymorphous typically appear several hours to days after exposure intense sunlight ta...

Polymorphous low-grade adenocarcinoma (PLGA) is difficult to diagnose both clinically and histologically due to its indolent presentation, and because of its morphological diversity that includes several microscopic patterns. The aggressive biologic behavior seen in minor salivary glands as compared to major glands is apparently associated histologically to a predominance of the papillary patte...

BACKGROUND This study is an analysis of the prevalence of polymorphous low grade adenocarcinoma (PLGA) in epidemiological surveys of salivary tumors published in the English language from 1992 to 2012. METHODS These surveys included studies from different researchers, countries and continents. The 57 surveys for which it was possible to calculate the percentage of PLGAs among all malignant mi...