IPLab:Lab 9:RMSF
ImagesEdit
This is a low-power photomicrograph of the skin biopsy. Note areas of hemorrhage (arrow) in the dermis.
This is a higher-power photomicrograph demonstrating areas of hemorrhage immediately underneath the epidermis. Also note the cellularity and thrombosis of the small vessels in the dermis (arrow).
This is a photomicrograph of a small vessel in the dermis which is demonstrating mild vasculitis.
This is a higher-power photomicrograph of a dermal vessel with mild vasculitis.
This is a photomicrograph of dermis with an area of more severe vasculitis (arrow).
This is a high-power photomicrograph of severe vasculitis in the dermis.
This is a high-power photomicrograph of a dermal vessel (arrow) which is exhibiting vasculitis and thrombosis.
This is a high-power photomicrograph of a thrombosed vessel in the dermis. Note that the endothelial cells are missing along part of the circumference of the vessel (arrows)--this is where the main part of the thrombus has attached. Also note the inflammation surrounding the vessel.
A thrombus is a solid mass resulting from the aggregation of blood constituents within the vascular system.