Rash
<p><b>Macule</b>    a flat skin lesion <1 cm in greatest diameter
                    <b>Patch    </b>when macules exceed 1 cm
<b>Papule</b>    a raised bump <1 cm in diameter
                    <b>Plaque</b> (palpable lesions elevated above the skin surface)    when papules exceed 1 cm in size
<b>                    Nodule</b> (a larger, firm papule with a significant vertical dimension)
<b>Pustule   </b>a papule containing purulent fluid
<b>Vesicle    </b>a papule containing clear serous fluid
<b>Bulla        </b>a larger vesicle >1 cm
<b>Urticaria    </b>a wheal or hive</p>