<prompt> Which of the following is secondary lesion?PapuleBullaScaleMacule  <response>: Skin Lesion Primary Special Depending on size 0.5cm 0.5cm Comedones-Acne 1cm 1cm Wheals- Uicariaare transient hives. Flat Macule Patch Burrows-scabies Solid raised Papule Plaque - if horizontal diameter more Nodule - if veical diameter more Fluid filled Vesicle Bullae Pus filled Pustule Abscess Dt extravasation of blood Petechiae Purpura Ecchymosis i.e. 1cm Secondary lesions are lesions which develop over primary lesions. Eg. Scales. A flat plate or flake of stratum corneum. Types collarette - fine, peripherally attached and centrally detached scale at the edge of an inflammatory lesion Furfuraceous or pityriasiform - fine and loose. Ichthyotic - large and polygonal. 