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General Medicine

Parapsoriasis, Small Plaque

Mary E. Maloney, MD and Vijaya T. Daniel, MD, MPH Reviewed 05/2023
 


BASICS

DESCRIPTION

  • Parapsoriasis describes a group of cutaneous diseases characterized by scaly patches or slightly raised plaques that resemble psoriasis.

  • There are three main types of parapsoriasis:

    • Pi...

DIAGNOSIS

HISTORY

Onset of SPP is indolent, developing from a few patches and becoming more visible over an extended period of time. It can last months to several years and often resolves spontaneously...

TREATMENT

  • Typically managed conservatively, often with minimal or no treatment necessary

  • Topical treatment is effective.

MEDICATION

First Line

  • Emollients

  • Moderate to high potency topical corticosteroid cre...

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

Patient Monitoring

  • Annual follow-up is recommended.

  • If epidermal atrophy occurs, consider a repeat skin biopsy.

PATIENT EDUCATION

  • Patients should watch for an increas...

REFERENCES

1
El-Darouti  MA, Fawzy  MM, Hegazy  RA, et al. Hypopigmented parapsoriasis en plaque, a new, overlooked member of the parapsoriasis family: a report of 34 patients a...

ADDITIONAL READING

CODES

ICD10

L41.3 Small plaque parapsoriasis 

SNOMED

23854007 Small plaque parapsoriasis 

CLINICAL PEARLS

  • SPP presents as well-demarcated round/oval minimally scaly plaques <5 cm in diameter.

  • The World Health Organization considers SPP a benign disease with little to no potential for tra...

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