Urinary tract infection (UTI) facts. 1  Urinary tract infections (UTIs) are infections of the urethra, bladder, ureters, or the kidneys, which comprise the urinary tract.  E. coli bacteria cause the majority of UTIs, but many other bacteria, fungi, and parasites may also cause UTIs.
Common vasculitis skin lesions are: 1  red or purple dots (petechiae), usually most numerous on the legs. 2  larger spots, about the size of the end of a finger (purpura), some of which look like large bruises. 3  Less common vasculitis lesions are hives, an itchy lumpy rash and painful or tender lumps. Antibodies that react against cells in vessel walls. 2  In some cases of vasculitis, an antibody against the cytoplasm of neutrophils (anti-neutrophil cytoplasm antibodies, or ANCA) is the probable cause of the inflammation and damage.
This skin lesion can be simple described as a bigger macule. Similar to the previous type of lesion, the patch is also flat, not palpable, and has color changes. But unlike the macule, this has a size of over 1 centimeter.These lesions can also be noted among patients with Vitiligo and Neurofibromatosis, as Cafe cafÃ© au lait. spotsimilar to the previous type of lesion, the patch is also flat, not palpable, and has color changes. But unlike the macule, this has a size of over 1 centimeter. These lesions can also be noted among patients with Vitiligo and Neurofibromatosis, as Cafe cafÃ© au lait. spots