Pleomorphic adenoma with extensive oncocytic papillary cystic areas and trichilemmal keratinisation - A unique presentation.

Pleomorphic adenoma (PA) is a commonly occurring benign salivary gland tumour known for its surfeit of histo-morphologic appearances ranging from myxochondroid, plasmacytoid, and squamoid elements to the infrequently seen osseous and adipose tissue metaplasia. Oncocytic metaplastic changes, a rare finding, present in the form of sheets/islands/cords of polygonal cells with rich eosinophilic or occasionally clear cytoplasm and an oval/round nucleus. We report one such rare case which portrayed extensive oncocytic changes in a unique bilayered/multi-layered epithelium, lining the papillary cystic areas similar to that of Warthin's tumour and extensive keratinisation simulating the newly recognised entity "adnexa-like differentiation/trichilemmal keratinisation", along with foci of cholesterol clefts and multi-nucleated giant cells.

Dataset on optimization of lignin peroxidase production by sp. under submerged fermentation using one factor at a time approach.

One factor at a time approach was employed for the optimization of media components, physical factors and additional additives for lignin peroxidase (LiP) production under submerged fermentation by the endophytic fungus sp. The optimized conditions derived were: carbon source (dextrose 10 g/L), nitrogen source (ammonium tartarate 0.027 g/L), veratryl alcohol (1 mM), MnSO (0.

Data of optimization of laccase production by LA1 under solid state fermentation using one factor at a time method.

This article contains data regarding optimization of laccase production under solid state fermentation by the basidiomycetes fungi LA1.The data was collected by varying one factor at a time and keeping other factors of the system constant. Influence of environmental factors (substrate type, temperature, inoculums size, substrate weight, substrate length, pH), nutritional factors (organic and inorganic nitrogen sources, carbon sources, surfactants) and elicitors added to media was examined through the laccase activity of the extract.