Erythematous Scaly Plaques

  • Sunil K. Kothiwala
  • Piyush Kumar


  • Psoriasis accounts for 4% of all dermatoses seen in children under 16 years of age

  • Classical lesions of plaque psoriasis are well defined, round, intensely erythematous, and covered with silver white scale

  • In histology, accumulation of neutrophils within a pustule is referred to as the “spongiform pustule of Kogoj” and the accumulation of neutrophils remnants in stratum corneum surrounded by parakeratosis is called “micro abscess of Munro”

  • Auspitz sign is appearance of pin-point bleeding spots when scale is removed from plaque, caused by rupture of dilated capillaries beneath the thinned suprapapillary epidermis

  • Koebner phenomenon is characterised by formation of new psoriatic lesions in otherwise healthy skin

  • Therapeutic modalities for psoriasis are topical therapy, photochemotherapy and systemic therapy

  • Topical therapy includes corticosteroids, vitamin D3 analogues, anthralin, tazarotene, salicylic acid, coal tar and calcineurin inhibitors

  • Obesity, metabolic syndrome and higher risk for developing Crohn’s disease are complications of childhood psoriasis


Psoriasis Kogoj pustule Microabscess of Munro Vitamin D3 analogues Tazarotene Anthralin 


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Sunil K. Kothiwala
    • 1
  • Piyush Kumar
    • 2
  1. 1.Consultant DermatologistSkinEva ClinicJaipurIndia
  2. 2.Department of DermatologyKatihar Medical CollegeKatiharIndia

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