The onset is typically gradual, with periods of improvement and worsening. The lesions can involve any area of the body.
In the form più feature appear as patches or plaques, erythematous (red) well demarcated and covered by scales of white complexion and silver of varying thickness.
Appear, usually, in a symmetrical manner and, in relation to location and form, result in several variants of the disease:
the classic form, characterized by the preference for some sites, the surfaces estensorie of the limbs, especially the elbows and knees, the scalp, the lumbo-sacral, the palms of the hands, the soles of the feet, while the face is affected rarely. Occurs generally in the second or third decade of life.
Psoriasis Eruptive or Guttate
Pop-up eruption over the entire body surface, numerous small spots lenticular (guttate = drop-shaped), which undergo desquamation, with relative sparing of the face and scalp.
especially Affects the young after a streptococcal infection, usually tonsillar, causing general malaise and pain in the small joints.
it is a rare form, between the più severe, characterized by the appearance isolated of numerous pustules, pin-head on the erythematous patches. Of this form there are two varietà, localized primarily at the palm-plantar (Barber) and a diffuse (Zumbusch), più serious, which severely compromises the general condition of the patient with high fever, chills, burning sensations, imbalances idroelettrolitici with hypoalbuminemia.
Relatively frequently, it has a localization “inverse” with respect to the classical, affecting the folds of inguinal, axillary, axillary, and elbows. The skin looks intensely red, smooth, sharp boundaries, while the component desquamativa is minimal or absent.
the form più severe; manifested by fever and involvement of the entire skin, which appears to be very reddened to the intense vascularity. The general state of the subject può be seriously compromised, due to disorders of thermoregulation, dehydration and electrolyte imbalances, which often goes the meeting.
Sometimes the psoriasis can; affect the joints, especially those of the hands, feet, knees and femur. The onset is often subacute; può to follow, be contemporaneous with or precede the cutaneous manifestations.
Called the Psoriasis psoriatic arthritis può join onicopatia (alterations of the nails), and lead to severe joint deformations.
Cinzia Confalone – Ministerosalute.en
Page updated on 26/7/2006