Question: what are characteristics of primary lesions?
Answer: Macule. A macule is a distinct discoloration of the skin that is flat and smaller than 1 centimeter in diameter. ...  Papule. A papule is a raised skin area with no visible fluid and sized up to 1 centimeter in diameter. ...  Nodule. ...  Tumor. ...  Plaque. ...  Vesicle. ...  Bullae. ...  Pustule.