Oligodendrogliomas with Abundant Refractile Eosinophilic Granular Cells

Oligodendrogliomas with abundant refractile eosinophilic granular cells.

Refractile eosinophilic granular cells, when present in abundance in a glioma, may trigger a diagnosis of the relatively familiar and inherently malignant 'granular cell astrocytoma'. The following two cases remind us that refractile eosinophilic granular cells are not unique to granular cell astrocytoma but can also dominate the histology of oligodendroglioma confirmed by 1p19q loss, and the i...

Cutaneous mastocytosis with abundant eosinophilic infiltration: a case report with review of the literature.

Mastocytosis is a clonal proliferation of mast cells that accumulates in one or more organs [1]. This disorder is heterogenous, ranging from skin lesion that may spontaneously regress to multiple organ lesions that show a highly aggressive course, and a recent World Health Organization Classification divides it into 7 subtypes: cutaneous mastocytosis, indolent systemic mastocytosis, systemic ma...

Comparisons of cells, refractile bodies, and spores of Bacillus popilliae.

Spores of Bacillus popilliae from infected larvae and refractile bodies produced in a Trypticase-barbiturate medium were similar but distinct from vegetative cells of this organism in protein, nucleic acid, and enzyme composition. The spores and refractile bodies were found to have catalase activity, some of which was heat-resistant. This enzyme was not found in the vegetative cells. The spores...

Eosinophilic myositis Associated with Sarcocystis in Sheep

Compound odontoma with granular cells.

The authors present an interesting and unusual histology of compound odontoma from an 18-year-old female. Part of the subepithelial connective tissue beneath the enamel organ epithelium was replaced by a granular cell nodule, of a probable histiocytic nature. This case represents the first published report of odontoma accompanied by granular cells.