Figure 36.1
Histopathology of pityriasis rubra pilaris: follicular plugging, acanthosis with exaggerated follicular shoulders, spotty parakeratosis and mild upper...
Figure 36.5
Evolution of type I PRP: (a,b) progression over 4 months from limited seborrhoeic dermatitis‐like rash on the upper trunk to erythroderma in an elderl...
Figure 36.2
Pityriasis rubra pilaris (PRP): (a) classical adult‐onset, type I; (b) classical juvenile‐onset, type III; and (c) circumscribed juvenile‐onset, type ...
Figure 36.6
Resolution of type I PRP: (a,d) erythrodermic PRP at presentation 6 months after initial onset in a 60‐year‐old male: note ‘islands of sparing’ and dr...
Figure 36.3
Classical adult‐onset PRP: (a) confluent orange‐red erythema on the face and neck with prominent ‘islands of sparing’; (b–d) prominent erythema and sc...
Figure 36.4
Juvenile‐onset circumscribed PRP may persist into adulthood, as here: (a,b) circumscribed areas of hyperkeratosis over the elbows and knees may not sh...
