Wine caps are named for their wine-red round heads, which can be as large as 2 to 6 inches in width, with a white stem around 3 to 6 inches long. The caps lighten as they mature, while the black gills ...
Overview Children with pediatric white blood cell disorders have too few or too many white blood cells. White blood cells, called leukocytes, are part of the immune system. They come from bone marrow and help fight infections. Several conditions can cause having too few or too many white blood cells.