Large-plaque parapsoriasis
Encyclopedia
Large plaque parapsoriasis (also known as "parapsoriasis en plaques") are skin lesions that may be included in the modern scheme of cutaneous conditions described as parapsoriasis
. These lesions, called plaques, may be irregularly round-shaped to oval and are 10 cm (3.9 in) or larger in diameter. They can be very thin plaques that are symptomatic or mildly pruritic. 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.
Parapsoriasis
Parapsoriasis refers to one of a group of skin disorders that are characterized primarily by their resemblance to psoriasis , rather than by their underlying etiology.Neoplasms can develop from parapsoriasis...
. These lesions, called plaques, may be irregularly round-shaped to oval and are 10 cm (3.9 in) or larger in diameter. They can be very thin plaques that are symptomatic or mildly pruritic. Large-plaque parapsoriasis is a common associate of retiform parapsoriasis
Retiform parapsoriasis
Retiform parapsoriasis is a cutaneous condition, considered to be a type of large-plaque parapsoriasis. It is characterized by widespread, ill-defined plaques on the skin, that have a net-like or zebra-striped pattern...
, can be accompanied by poikiloderma vasculare atrophicans
Poikiloderma vasculare atrophicans
Poikiloderma vasculare atrophicans , sometimes referred to as parapsoriasis variegata or parapsoriasis lichenoides is a cutaneous condition characterized by hypo- or hyperpigmentation , telangiectasia and skin atrophy...
, and can in rare occasions be a precursor to cutaneous T-cell lymphoma.