Large plaque parapsoriasis
Large Plaque Parapsoriasis (pronunciation: lahrj plak par-uh-suh-ry-uh-sis) is a rare, chronic skin condition that is often confused with other skin disorders due to its similar appearance.
Etymology
The term "parapsoriasis" is derived from the Greek words "para" meaning "beside" or "resembling", and "psoriasis", a common skin condition. The term "large plaque" refers to the size of the skin lesions that are characteristic of this condition.
Definition
Large plaque parapsoriasis is a type of cutaneous T-cell lymphoma, a group of disorders that occur when T-cells (a type of white blood cell) become malignant and affect the skin. It is characterized by large, scaly, well-demarcated skin patches that are often pink or red in color. These patches are typically found on the trunk, thighs, and upper arms.
Symptoms
The main symptom of large plaque parapsoriasis is the presence of large, scaly patches on the skin. These patches may be itchy and can vary in size, but are typically larger than 5 cm in diameter. Other symptoms may include dry skin, redness, and a burning sensation.
Diagnosis
Diagnosis of large plaque parapsoriasis is often challenging due to its similarity to other skin conditions such as psoriasis and eczema. It is typically diagnosed through a combination of physical examination, patient history, and skin biopsy.
Treatment
Treatment for large plaque parapsoriasis often involves the use of topical corticosteroids, phototherapy, and in some cases, systemic therapy. The goal of treatment is to manage symptoms and prevent progression to lymphoma.
Prognosis
The prognosis for large plaque parapsoriasis is generally good, although the condition is chronic and can be difficult to manage. In some cases, it can progress to a more serious form of cutaneous T-cell lymphoma.
See Also
External links
- Medical encyclopedia article on Large plaque parapsoriasis
- Wikipedia's article - Large plaque parapsoriasis
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