Wiktionary
parapsoriasis
n. A skin disorder characterized by a superficial resemblance to psoriasis (red, scaly lesions), rather than by its underlying etiology.
Wikipedia
Parapsoriasis
Parapsoriasis refers to one of a group of skin disorders that are characterized primarily by their resemblance to psoriasis (red, scaly lesions), rather than by their underlying etiology.
Neoplasms can develop from parapsoriasis. For example, it can develop into cutaneous T-cell lymphoma.
The word "Parapsoriasis" was formed in 1902.