"Purpura" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
Purplish or brownish red discoloration, easily visible through the epidermis, caused by hemorrhage into the tissues. When the size of the discolorization is >2-3 cm it is generally called Ecchymoses (ECCHYMOSIS).
Below are MeSH descriptors whose meaning is more general than "Purpura".
Below are MeSH descriptors whose meaning is more specific than "Purpura".
This graph shows the total number of publications written about "Purpura" by people in the URMC Research Network by year, and whether "Purpura" was a major or minor topic of these publication.