Pustula (pustula): The primary bloom was above the surface of the skin and was filled with purulent content from the beginning (e.g. pustular psoriasis). Pustules can be related to infection by pyogenic, non-proliferating or sterile bacteria.
DIG. 102. Pustules and cysts.
Source: A. Kaszuba, Z. Adamski: “Lexicon of dermatology”; XNUMXst edition, Czelej Publishing House