Fig. 3.13. a-c Perivascular pseudo-rosettes in an ependymoma. NP20617, H&E. a Low magnification. b High magnification. c Special stains such as this Verhoeff-van Gieson stain can differentiate the perivascular collagen (red in the original) from the glial fibers (yellow in the original), the latter tapering to a point in ependymomas rather than expanding into a footplate, as in astroblastomas. NP709.
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The term vaginitis is one that is applied to any inflammation or infection of the vagina, and there are many different conditions that are categorized together under this ‘broad’ heading, including bacterial vaginosis, trichomoniasis and non-infectious vaginitis.