Large plaque parapsoriasis are
skin lesion
A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, nails, and related muscle and glands. The major function of thi ...
s that may be included in the modern scheme of cutaneous conditions described as
parapsoriasis.
These lesions, called
plaques
Plaque may refer to:
Commemorations or awards
* Commemorative plaque, a plate or tablet fixed to a wall to mark an event, person, etc.
* Memorial Plaque (medallion), issued to next-of-kin of dead British military personnel after World War I
* Pla ...
, may be irregularly round-shaped to oval and are or larger in diameter.
They can be very thin plaques that are asymptomatic or mildly
pruritic
Itch (also known as pruritus) is a sensation that causes the desire or reflex to scratch. Itch has resisted many attempts to be classified as any one type of sensory experience. Itch has many similarities to pain, and while both are unpleasant ...
.
Large-plaque parapsoriasis is a common associate of
retiform parapsoriasis, can be accompanied by
poikiloderma vasculare atrophicans, and can in rare occasions be a precursor to
cutaneous T-cell lymphoma
Cutaneous T-cell lymphoma (CTCL) is a class of non-Hodgkin lymphoma, which is a type of cancer of the immune system. Unlike most non-Hodgkin lymphomas (which are generally B-cell-related), CTCL is caused by a mutation of T cells. The cancer ...
.
Cause
Diagnosis
Treatment
Parapsoriasis treatment consists primarily of
light therapy
Light therapy, also called phototherapy or bright light therapy is intentional daily exposure to direct sunlight or similar-intensity artificial light in order to treat medical disorders, especially seasonal affective disorder (SAD) and circadi ...
(more specifically
PUVA therapy or UVB therapy) possibly in combination with
topical steroids.
Large plaque parapsoriasis is usually a chronic condition that needs long-term treatment.
See also
*
List of cutaneous conditions
Many skin conditions affect the human integumentary system—the organ system covering the entire surface of the body and composed of skin, hair, nails, and related muscle and glands. The major function of this system is as a barrier agai ...
*
Mycosis fungoides
References
External links
Lymphoid-related cutaneous conditions
{{Cutaneous-condition-stub