Classification and external resources
ICD-10 L41
ICD-9 696.2
eMedicine derm/311
MeSH D010267

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.[1] For example, it can develop into cutaneous T-cell lymphoma.

The word "Parapsoriasis" was formed in 1902.[2]



The parapsoriasis group, described and debated for nearly a century, has spawned a confusing nomenclature. There are some authors who prefer to limit the term "parapsoriasis" to large- and small-plaque variants only.[2] However, the following classification scheme is now generally accepted:[3]:450

See also


  1. ^ Sehgal VN, Srivastava G, Aggarwal AK (2007). "Parapsoriasis: a complex issue". Skinmed 6 (6): 280–6. doi:10.1111/j.1540-9740.2007.06490.x. PMID 17975354. 
  2. ^ a b Lambert WC, Everett MA (Oct 1981). "The nosology of parapsoriasis". J. Am. Acad. Dermatol. 5 (4): 373–95. doi:10.1016/S0190-9622(81)70100-2. PMID 7026622. 
  3. ^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0071380760.

External links