Diseases

Photoallergic Dermatitis

A delayed hypersensitivity involving the reaction between sunlight or other radiant energy source and a chemical substance to which the individual has been previously exposed and sensitized. It manifests as a papulovesicular, eczematous, or exudative dermatitis occurring chiefly on the light-exposed areas of the skin.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A delayed hypersensitivity involving the reaction between sunlight or other radiant energy source and a chemical substance to which the individual has been previously exposed and sensitized. It manifests as a papulovesicular, eczematous, or exudative dermatitis occurring chiefly on the light-exposed areas of the skin.

MeSH Record

Classification

Broader headings

Related Concepts

Knowledge Graph

Loading graph…

Drag nodes to rearrange; hover to trace links; click a node to open its page.

MeSH Record

Synonyms

23 entry terms
  • Dermatitis, Contact, Photoallergic
  • Dermatitis, Contact, Photosensitive
  • Dermatitis, Photoallergic
  • Dermatitis, Photocontact
  • Photoallergic Contact Dermatitis
  • Photosensitive Contact Dermatitis
  • Contact Dermatitides, Photoallergic
  • Contact Dermatitides, Photosensitive
  • Contact Dermatitis, Photoallergic
  • Contact Dermatitis, Photosensitive
  • Dermatitides, Photoallergic
  • Dermatitides, Photoallergic Contact
  • Dermatitides, Photocontact
  • Dermatitides, Photosensitive Contact
  • Dermatitis, Photoallergic Contact
  • Dermatitis, Photosensitive Contact
  • Photoallergic Contact Dermatitides
  • Photoallergic Dermatitides
  • Photocontact Dermatitides
  • Photocontact Dermatitis
  • Photosensitive Contact Dermatitides
  • Photoallergy
  • Photoallergies

MeSH Record

Aspects Covered

34 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Record

Indexing Annotation

a delayed hypersensitivity

MeSH Record

History Note

93; DERMATITIS, CONTACT, PHOTOSENSITIVE; DERMATITIS, PHOTOCONTACT; & PHOTOALLERGY were see PHOTOSENSITIVITY DISORDERS 1979-92

MeSH Record

Previous Indexing

  • Photosensitivity Disorders (1966-1992)

MeSH Hierarchy

Tree Numbers

  1. C17.800w.174w.255w.100w.600w
  2. C17.800w.600w.325w
  3. C17.800w.815.255w.100w.600w
  4. C20w.543w.418w.150w.600w

AMA Style

References

  1. National Library of Medicine. Photoallergic Dermatitis. Medical Subject Headings (MeSH). 2026. Unique ID D017454. http://id.nlm.nih.gov/mesh/2026/D017454
  2. Photoallergic Dermatitis. In: Wikipedia. https://en.wikipedia.org/wiki/Photodermatitis
  3. Photoallergic Dermatitis. In: Wikidata. https://www.wikidata.org/wiki/Q608085