Synonym(s)
HistoryThis section has been translated automatically.
Brocq, 1902
DefinitionThis section has been translated automatically.
Term introduced by Brocq in 1902 as a temporary measure for various rare, chronic, unclassifiable, erythematosquamous, therapy-resistant skin diseases. The diseases of the parapsoriasis group have no nosological relationship to psoriasis and there are also no pathogenetic similarities between them.
The large-heart inflammatory parapsoriasis en plaques is to be regarded as initial cutaneous T-cell lymphoma.
The small-spot parapsoriasis is generally classified as indiopathic, benign, chronic dermatitis (some authors doubt the absolute "benignity" of small-spot parapsoriasis - see on this under Parapsoriasis en plaques benign small-spot form - and doubt an own entity).
You might also be interested in
ClassificationThis section has been translated automatically.
A distinction is made between:
- Pityriasis lichenoides (Parapsoriasis guttata)
- Parapsoriasis en plaques
- Parakeratosis variegata (Parapsoriasis variegata) Remark: The peculiarity of this clinical picture is doubted today.
TherapyThis section has been translated automatically.
LiteratureThis section has been translated automatically.
Belousova IE et al (2008) A patient with clinicopathologic features of small plaque parapsoriasis presenting later with plaque-stage mycosis fungoides: report of a case and comparative retrospective study of 27 cases of "nonprogressive" small plaque parapsoriasis. J Am Acad Dermatol 59:474-482
- Brocq LAJ (1902) Les parapsoriasis. Ann Dermatol Syph (Paris) 3: 313-315, 433-468
- Costa C et al (2003) Analysis of T-cell receptor gamma gene rearrangements by PCR-Genescan and PCR-polyacrylamide gel electrophoresis in early-stage mycosis fungoides/large-plaque parapsoriasis. Dermatology 207: 418-419
- Erkek E et al (2002) Absence of Epstein-Barr virus and human herpesvirus-6 in pityriasis lichenoides and plaque parapsoriasis. J Eur Acad Dermatol Venereol 16: 536-537
- Holubar K (2003) Psoriasis and parapsoriasis: since 200 and 100 years, respectively. J Eur Acad Dermatol Venereol 17: 126-127
- Lewin J et al (2012) Digitate dermatosis (small-plaque parapsoriasis).
Dermatol Online J 18:3 PubMed PMID: 23286793.
Recommended articles
Incoming links (6)
Dermatoses, erythematosquamous; Epidermotropy; Erythrosquamous diseases; Guttate psoriasis; Phototherapy; Rehabilitation, dermatological;Outgoing links (7)
Cutaneous t-cell lymphomas; Parapsoriasis en plaques benign small foci; Parapsoriasis en plaques large; Parapsoriasis en plaques (overview); Pityriasis lichenoides (overview); Psoriasis (Übersicht); Retiform parakeratosis;Disclaimer
Please ask your physician for a reliable diagnosis. This website is only meant as a reference.
Prof. Dr. med. Peter Altmeyer
