Prurigo pigmentosa pathology
Figure 4
Keywords: Prurigo pigmentosa, Histopathology-image, Pathology
Histology of prurigo pigmentosa
In well established prurigo pigmentosa, histopathologic examination reveals a sparse lichenoid infiltrate which also involves the superficial plexus and parakeratosis (figure 1). There are numerous dermal melanophages in later stages (figure 2). High power examination shows the lichenoid reaction is associated with apoptotic and necrotic keratinocytes present at all levels of the epidermis (figure 3). It is quite common to find a suppurative folliculitis and often hair follicles are filled with bacteria (figure 4).
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